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such as Gorlin syndrome&#44; has also been recognized&#46;<a class="elsevierStyleCrossRefs" href="#bib0160"><span class="elsevierStyleSup">32&#8211;36</span></a> However&#44; the application of conventional PDT<a class="elsevierStyleCrossRef" href="#bib0050"><span class="elsevierStyleSup">10</span></a> is a laborious&#44; time-consuming process for health professionals and patients alike and requires special equipment that takes up space in a clinic&#46; The classic protocol<a class="elsevierStyleCrossRef" href="#bib0050"><span class="elsevierStyleSup">10</span></a> specifies that the photosensitizer should be applied and kept covered &#40;occlusion&#41; for a certain period&#8212;usually 4<span class="elsevierStyleHsp" style=""></span>to 6<span class="elsevierStyleHsp" style=""></span>hours or more for 5-aminolevulinic acid &#40;5-ALA&#41; or 3 hours for the 5-ALA methylester&#44; or methyl aminolevulinate &#40;MAL&#41;&#46; After incubation&#44; the area is exposed to an appropriate source of light&#46; The most common combinations of light sources and doses used in Europe are the Aktilite &#40;Galderma&#44; Lausanne&#44; Switzerland&#41; at 37<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span> for approximately 8<span class="elsevierStyleHsp" style=""></span>minutes and the Waldmann PDT 1200L &#40;Waldmann GmbH &#38; Co&#44; Villingen-Schwenningen&#44; Germany&#41; at 75<span class="elsevierStyleHsp" style=""></span>to 100<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span> for approximately 20<span class="elsevierStyleHsp" style=""></span>minutes&#46; PDT is not free of adverse effects&#46;<a class="elsevierStyleCrossRefs" href="#bib0185"><span class="elsevierStyleSup">37&#8211;44</span></a> The most common one&#44; and the most limiting&#44; is pain during illumination&#44; which must sometimes be interrupted&#59; analgesia or local or regional anesthesia may be required&#46;<a class="elsevierStyleCrossRefs" href="#bib0225"><span class="elsevierStyleSup">45&#44;46</span></a></p><p id="par0010" class="elsevierStylePara elsevierViewall">With the use of portable light sources &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>&#41; to optimize the procedure and facilitate outpatient treatment&#44;<a class="elsevierStyleCrossRefs" href="#bib0235"><span class="elsevierStyleSup">47&#8211;49</span></a> the concept of ambulatory PDT has emerged&#46;<a class="elsevierStyleCrossRef" href="#bib0250"><span class="elsevierStyleSup">50</span></a> This modality is costly&#44; however&#44; and is only useful for treating small lesions&#46; The most important methodological simplification introduced in recent years has been the therapeutic use of daylight&#46;<a class="elsevierStyleCrossRefs" href="#bib0255"><span class="elsevierStyleSup">51&#44;52</span></a></p><elsevierMultimedia ident="fig0005"></elsevierMultimedia></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0030">Daylight-Mediated PDT</span><p id="par0015" class="elsevierStylePara elsevierViewall">Daylight PDT uses a combination of direct and reflected sunlight outdoors&#46;<a class="elsevierStyleCrossRef" href="#bib0265"><span class="elsevierStyleSup">53</span></a> Using the sun as a light source has encouraged more widespread use of PDT&#44; has lowered costs considerably&#44; and has enhanced adherence&#46;</p><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0035">Clinical Trials and Other Published Studies</span><p id="par0020" class="elsevierStylePara elsevierViewall">The available publications are summarized in <a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a>&#46; Strasswimmer and Grande<a class="elsevierStyleCrossRef" href="#bib0270"><span class="elsevierStyleSup">54</span></a> suggested in 2006 that daylight could activate a photodynamic reaction&#44; a claim that others disputed&#46;<a class="elsevierStyleCrossRef" href="#bib0275"><span class="elsevierStyleSup">55</span></a> Batchelor and colleagues<a class="elsevierStyleCrossRef" href="#bib0255"><span class="elsevierStyleSup">51</span></a> were the first to report the effective use of daylight PDT to treat multiple scalp AKs in a 90-year-old patient who showed good tolerance of the session&#46; The most important work on this modality has been published since 2008 by the group of Wiegell and colleagues at Hospital Bispebjerg in Denmark&#46; Most of their studies have enrolled patients with AK &#40;<a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a>&#41;&#46; In a pilot study with 29 patients they initially demonstrated that daylight-mediated PDT was as effective against AKs as red-light PDT using a light-emitting diode as the source&#59; daylight therapy was also much less painful&#46;<a class="elsevierStyleCrossRef" href="#bib0260"><span class="elsevierStyleSup">52</span></a> The authors suggested that progressive&#44; slower activation of protoporphyrin IX &#91;PpIX&#93; by small amounts of the photosensitizer &#40;rather than rapid activation of large amounts of PpIX in the target tissue after several hours of incubation&#41; might reduce the pain associated with treatment&#59; they also suggested that since red and blue light fall within the spectrum of daylight&#44; this source might be effective in therapy and also facilitate treatment&#46; The use of natural light&#44; therefore&#44; could theoretically be useful and enhance therapy&#46; In a later study they compared the efficacy of daylight-mediated PDT using MAL at concentrations of 16&#37; and 8&#37;&#44; observing no differences in response rates&#44; grades of erythema or pain between patients using the different concentrations&#46;<a class="elsevierStyleCrossRef" href="#bib0280"><span class="elsevierStyleSup">56</span></a> The authors suggested that MAL concentrations lower than the usual one of 16&#37; could be effective&#46; In 2011 they published the results of the first multicenter trial of daylight PDT in patients with nonhyperkeratotic AKs&#44; finding that outcomes after exposures of 1&#46;5<span class="elsevierStyleHsp" style=""></span>and 2&#46;5<span class="elsevierStyleHsp" style=""></span>hours were similar&#46;<a class="elsevierStyleCrossRef" href="#bib0285"><span class="elsevierStyleSup">57</span></a> The authors recommended a 2-hour exposure time&#46; The 2 later studies confirmed the earlier findings that daylight PDT is effective in nonhyperkeratotic AK&#46; However&#44; this modality proved less effective on hyperkeratotic AK lesions&#46;<a class="elsevierStyleCrossRef" href="#bib0290"><span class="elsevierStyleSup">58</span></a></p><elsevierMultimedia ident="tbl0005"></elsevierMultimedia><p id="par0130" class="elsevierStylePara elsevierViewall">Braathen<a class="elsevierStyleCrossRef" href="#bib0295"><span class="elsevierStyleSup">59</span></a> reported similar results for daylight PDT used to treat facial and scalp AKs in a series of 18 patients in a private practice setting&#46;</p><p id="par0030" class="elsevierStylePara elsevierViewall">The results of a multicenter randomized controlled trial in Australia were recently presented by Shumack and colleagues at the Euro-PDT meeting &#40;the annual conference of the European Society for Photodynamic Therapy in Dermatology&#41; in Madrid from May 31 to June 1&#44; 2013&#46; This study showed that daylight PDT was not inferior to conventional PDT and that it was better tolerated and preferred by both patients and the investigators&#46; This study confirmed the findings of earlier ones done in Nordic settings<a class="elsevierStyleCrossRefs" href="#bib0260"><span class="elsevierStyleSup">52&#44;56&#8211;58</span></a> and was the first undertaken in a country with a climate that is very different from that of northern Europe&#46; The same conference brought together reports of other smaller trials of daylight PDT&#46; In one study&#44; Grinblat and colleagues used 1 to 3 sessions to treat 14 patients with grade I or II AKs&#46; The setting was Brazil and exposure was performed between 9<span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleSmallCaps">am</span> and 11&#58;30<span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleSmallCaps">am</span> for a period of 60<span class="elsevierStyleHsp" style=""></span>to 90<span class="elsevierStyleHsp" style=""></span>minutes&#46; Most patients experienced improvement&#46; In the Netherlands&#44; Venema used daylight-mediated PDT to treat 2 patients with actinic cheilitis&#44; observing good clinical and cosmetic results&#46; Tolerance was excellent&#46; Le Pillouer-Prost presented the findings of a French study of 17 patients with grade I to III AKs&#46; Five of the patients had been pretreated with fractionated carbon dioxide laser therapy&#46; After 1 or 2 sessions of daylight PDT&#44; depending on lesion thickness&#44; most AKs in the pretreated group had resolved&#46; Lesions had also cleared in 10 of the 12 patients who had not been pretreated&#46; Finally&#44; Enk&#44; described using this modality in 14 patients with nonulcerated cutaneous leishmaniasis in Israel&#46; The patients were exposed to daylight in the hospital&#39;s garden for 2&#46;5<span class="elsevierStyleHsp" style=""></span>hours immediately after application of MAL&#46; The cure rate was 86&#37; after an average of 5 weekly sessions&#46; Scarring was minimal and the procedure was painless&#46;</p><p id="par0135" class="elsevierStylePara elsevierViewall">The main conclusions of the most important studies and a discussion of the details of the different approaches to this form of PDT can be found in a Euro-PDT consensus paper&#46;<a class="elsevierStyleCrossRef" href="#bib0265"><span class="elsevierStyleSup">53</span></a></p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0040">Treatment Protocol</span><p id="par0040" class="elsevierStylePara elsevierViewall">The only treatment protocol currently available for daylight-mediated PDT was proposed by Wiegell and colleagues<a class="elsevierStyleCrossRef" href="#bib0285"><span class="elsevierStyleSup">57</span></a> and is summarized in <a class="elsevierStyleCrossRef" href="#tbl0010">Table 2</a>&#46; Considering that this PDT modality is at present off-label&#44; the patient must be adequately informed about the procedure&#44; its adverse effects&#44; and efficacy&#46; Written informed consent must be obtained&#46; In order to assess the final outcome&#44; baseline photographs of the area to be treated should be taken&#44; and it may be useful to count and map the lesions in the field&#46; Pretreatment with topical keratolytic agents may be advisable in some cases&#46; Once the patient is in the treatment room&#44; a sunscreen is applied to all exposed areas of the skin&#44; even the area targeted for treatment&#46; The sunscreen should provide a sun protection factor &#40;SPF&#41; of at least 20 and not contain physical&#44; or inorganic&#44; filters&#46; Approximately 15<span class="elsevierStyleHsp" style=""></span>minutes after sunscreen application&#44; the lesions should be scraped with a curette&#46; A layer of MAL cream approximately 1<span class="elsevierStyleHsp" style=""></span>mm thick is then spread on the field to be treated&#46; Occlusion is not needed&#46; The patient should be outdoors and start exposing the area to daylight within half an hour of MAL application&#46; The recommended duration of exposure is 2 hours&#44; after which the remaining photosensitizer is removed and the skin is cleaned&#46; The treated field should be protected from sunlight the rest of the day&#46; Sun protection measures should be continued for at least the next 48<span class="elsevierStyleHsp" style=""></span>hours&#46;</p><elsevierMultimedia ident="tbl0010"></elsevierMultimedia></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0045">Key Questions and Concerns</span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0050">What Patients Are Candidates for Daylight-Mediated PDT&#63;</span><p id="par0140" class="elsevierStylePara elsevierViewall">This modality is mainly appropriate for cooperative patients who have multiple AKs &#40;preferably grade I or II&#41; or field cancerization in sun-exposed areas and who find conventional PDT to be very painful&#46; Daylight PDT will probably gradually come to be used for skin diseases other than AK&#46;</p></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0055">What Light Dose Is Needed for Effective Activation of PpIX&#63;</span><p id="par0050" class="elsevierStylePara elsevierViewall">The amount of irradiation received in 2<span class="elsevierStyleHsp" style=""></span>hours of direct sunlight at midday varies greatly according to geographic location&#44; weather conditions&#44; and season&#46;<a class="elsevierStyleCrossRef" href="#bib0300"><span class="elsevierStyleSup">60</span></a> The threshold dose for PpIX activation &#40;at which daylight PDT will be effective for destroying AKs&#41; varies in studies published to date &#40;8&#44; 6&#44; and 3&#46;5<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span>&#41;&#46;<a class="elsevierStyleCrossRefs" href="#bib0265"><span class="elsevierStyleSup">53&#44;57&#44;58&#44;60</span></a> Until the effective dose is established more precisely&#44; a threshold of 8<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span> is currently considered adequate to ensure that therapy will be effective&#46;<a class="elsevierStyleCrossRef" href="#bib0300"><span class="elsevierStyleSup">60</span></a> Using meteorological models and dosimeters installed at a number of geographic locations it has been possible to establish the effective light doses for activating PpIX in 2<span class="elsevierStyleHsp" style=""></span>hours of exposure at midday on the fifteenth day of each month at different latitudes&#46;<a class="elsevierStyleCrossRef" href="#bib0265"><span class="elsevierStyleSup">53</span></a> Accordingly&#44; it would be possible to reach daylight doses over 8<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span> in Spain in any month&#44; depending on weather conditions&#59; this treatment could therefore be completed within the 2-hour time frame all year round<a class="elsevierStyleCrossRef" href="#bib0265"><span class="elsevierStyleSup">53</span></a> &#40;<a class="elsevierStyleCrossRef" href="#tbl0015">Table 3</a>&#41;&#46;</p><elsevierMultimedia ident="tbl0015"></elsevierMultimedia></span><span id="sec0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0060">How Should the Lesions Be Exposed to Daylight&#63;</span><p id="par0055" class="elsevierStylePara elsevierViewall">Exposure should take place outside in the middle of the day and last 2<span class="elsevierStyleHsp" style=""></span>hours&#46;<a class="elsevierStyleCrossRef" href="#bib0285"><span class="elsevierStyleSup">57</span></a> However&#44; Grinblat and colleagues &#40;unpublished&#44; Euro-PDT meeting&#41; used shorter exposure times of 60<span class="elsevierStyleHsp" style=""></span>to 90<span class="elsevierStyleHsp" style=""></span>minutes and observed results that were similar to those of multicenter studies&#46;<a class="elsevierStyleCrossRefs" href="#bib0285"><span class="elsevierStyleSup">57&#44;58</span></a> Considering at the PpIX activation range corresponds to visible light&#44; which passes through glass&#44; Hospital Molhom in Vejle&#44; Denmark&#44; uses a glass structure to protect patients from certain weather conditions and increase comfort during exposure &#40;<a class="elsevierStyleCrossRef" href="#fig0010">Fig&#46; 2</a>&#41;&#46;</p><elsevierMultimedia ident="fig0010"></elsevierMultimedia></span><span id="sec0045" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0065">What Period of the Year Is Most Appropriate for Daylight-Mediated PDT&#63;</span><p id="par0060" class="elsevierStylePara elsevierViewall">It seems to be possible to provide treatment at midday all year round in Spain unless there is a thick cloud cover&#46;<a class="elsevierStyleCrossRef" href="#bib0265"><span class="elsevierStyleSup">53</span></a> Temperature may be a limiting factor&#44; however&#44; as studies in vitro and in mice suggest that low temperatures reduce PpIX production&#46;<a class="elsevierStyleCrossRefs" href="#bib0300"><span class="elsevierStyleSup">60&#8211;62</span></a> Low temperatures also make it difficult for the patient to stay outside during exposure&#46; A temperature range of 10<span class="elsevierStyleHsp" style=""></span>&#176;C to 35<span class="elsevierStyleHsp" style=""></span>&#176;C for daylight PDT has been recommended&#44;<a class="elsevierStyleCrossRef" href="#bib0300"><span class="elsevierStyleSup">60</span></a> but there is room for variation according to patient characteristics and exposure location&#46; To date&#44; no studies have demonstrated that there are differences in treatment efficacy outside this temperature range&#46;</p><p id="par0065" class="elsevierStylePara elsevierViewall">Wiegel and colleagues<a class="elsevierStyleCrossRef" href="#bib0300"><span class="elsevierStyleSup">60</span></a> a linear association between the UV index and the light dose that activates PpIX production during exposure at midday &#40;11<span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleSmallCaps">am</span> to 1<span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleSmallCaps">pm</span>&#41; for 2<span class="elsevierStyleHsp" style=""></span>hours&#59; when the UV index exceeds 3&#44; patients receive over 8<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span> in this period&#46; Weather conditions also play a part&#44; as the effective daylight dose can decrease 25&#37; on partly cloudy days&#44; 50&#37; on cloudy days&#44; and 75&#37; on rainy days&#46;<a class="elsevierStyleCrossRefs" href="#bib0265"><span class="elsevierStyleSup">53&#44;60</span></a> The exposure time required on such days has not been determined&#44; and although some authors recommend not scheduling this modality of PDT on rainy<a class="elsevierStyleCrossRef" href="#bib0285"><span class="elsevierStyleSup">57</span></a> or very overcast<a class="elsevierStyleCrossRef" href="#bib0315"><span class="elsevierStyleSup">63</span></a> days&#44; it would be useful to more precisely determine the required conditions for delivering the minimum effective light dose&#46;</p></span><span id="sec0050" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0070">Why Is a Sunscreen Needed and What Sunscreen Is Appropriate for PDT&#63;</span><p id="par0070" class="elsevierStylePara elsevierViewall">The recommendation to use a sunscreen aims mainly to prevent the adverse effects of UV radiation during exposure to sunlight&#46; Sunscreens used to date have varied in their SPF levels&#44; ranging from SPF 15&#44;<a class="elsevierStyleCrossRef" href="#bib0295"><span class="elsevierStyleSup">59</span></a> to SPF 20&#44;<a class="elsevierStyleCrossRefs" href="#bib0265"><span class="elsevierStyleSup">53&#44;57</span></a> to SPF 30 and SPF 50 &#40;by Grinblat and colleagues and by Le Pillouer-Prost&#44; respectively&#59; unpublished reports&#44; Euro-PDT meeting&#41;&#46; Similar outcomes have been observed with all of these sunscreens&#46; It is important to use one that does not contain mineral filters&#44; which might block the visible light necessary for PpIX activation in addition to UV radiation&#46; A list of sunscreens appropriate for use in daylight-mediated PDT has been provided by the Spanish company Laboratorios Galderma SA&#46; It includes the following products&#58; from Laboratorios Uriage&#44; Bariesun cream&#44; SPF 30&#47;50&#59; from Laboratorios Ducray&#44; Melascreen solar emulsion&#44; SPF 50&#59; from Laboratorios Eucerin&#44; Sun Spray transparent&#44; SPF 30&#47;50&#59; from Laboratorios Bioderma&#44; AKN Mat SPF 30&#47;UV-A 13&#44; MAX cream&#44; SPF 50&#43;&#47;UV-A&#160;38 and AKN Spray SPF 30&#47;UV-A13&#59; and from Laboratorios ISDIN&#44; a transparent SPF 30 gel-cream&#46;</p></span><span id="sec0055" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0075">What Limitations Affect Daylight-Mediated PDT&#63;</span><p id="par0075" class="elsevierStylePara elsevierViewall">Daylight-mediated PDT is of great benefit for certain patients and for dermatologists who have neither the time nor the infrastructure for conventional PDT&#46; However&#44; there are certain limitations&#44; such as the difficulty of scheduling sessions because of unpredictable weather and the constraints imposed by climate conditions in some geographic areas&#46; At northern European latitudes&#44; solar radiation is insufficient and temperatures are too low to accommodate sessions during some seasons &#40;autumn and winter&#41;&#46; Conditions in countries like Spain are different&#46; It is still unclear whether very intense exposure for 2<span class="elsevierStyleHsp" style=""></span>hours at our latitudes might be risky for our patients&#44; but the Australian clinical trial described above has shown that daylight-mediated PDT is effective and safe in countries with strong solar radiation&#46; Another problematic issue is the lack of rigorous control over therapy during the ambulatory outdoor period of the procedure&#44; as the patient is the one who monitors illumination&#46; To date&#44; we still do not know the impact these possible differences might have on the effectiveness of therapy&#46; In addition&#44; daylight PDT seems to be less effective than conventional PDT for grade III AKs&#44; and for the moment we lack sufficient evidence to support daylight-mediated PDT for other types of skin lesions&#46; We expect to have new data in the future&#44; however&#46;</p></span></span></span><span id="sec0060" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0080">Our Hospital Departments&#8217; Experience</span><p id="par0080" class="elsevierStylePara elsevierViewall">The dermatology services under the Integrated Management System in Vigo &#40;at Complejo Hospitalario Universitario de Vigo &#91;CHUVI&#93; and Hospital San Jorge in Huesca &#91;HSJ&#93;&#41; have used daylight-mediated PDT in 35 &#40;CHUVI&#41; and 9 &#40;HSJ&#41; patients with multiple grade I&#44; II or III AKs&#44; or field cancerization&#46; Lesions were located on the face and&#47;or scalp &#40;CHUVI and HSJ&#41; or legs &#40;HSJ&#41;&#46; Most patients were treated in a single session&#44; but some underwent 2 sessions &#40;HSJ&#41;&#46; The results &#40;<a class="elsevierStyleCrossRef" href="#fig0015">Fig&#46; 3</a>&#41; were similar to those achieved with conventional PDT for grade I or II AKs but inferior for grade III AKs&#46; The main adverse effects were inflammation and crusting in the treated area&#46; These effects were less intense&#44; however&#44; than those usually seen after conventional PDT &#40;<a class="elsevierStyleCrossRef" href="#fig0020">Fig&#46; 4</a>&#41;&#46; Patients treated in the CHUVI reported less pain &#40;scores&#44; 0&#8211;3 on a scale of 0 to 10&#41; after daylight mediated PDT than after conventional PDT &#40;scores&#44; 6&#8211;10&#41; Most patients who had previously undergone conventional PDT expressed a clear preference for the daylight-mediated modality&#46; The use of this approach allowed us to schedule treatment more quickly and accommodate all of them&#46; Daylight was particularly useful for treating CHUVI patients who lived outside the city&#44; and this choice also considerably reduced the amount of time the CHUVI staff spent preparing and supervising therapy&#46;</p><elsevierMultimedia ident="fig0015"></elsevierMultimedia><elsevierMultimedia ident="fig0020"></elsevierMultimedia></span><span id="sec0065" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0085">Conclusions</span><p id="par0085" class="elsevierStylePara elsevierViewall">Daylight-mediated PDT is an important new modality in dermatology&#46; It has proven to be as effective as conventional PDT for treating AK and is a technically simpler method&#46; Tolerance of therapy has improved considerably with the use of natural light&#46; Both patients and specialists often express a preference for daylight PDT because the ambulatory procedure is simple and easy to organize&#46; However&#44; important disadvantages are that it is difficult to schedule because of weather conditions at certain times of the year and because light exposure is difficult to control&#46; Over time&#44; this modality will probably begin to have applications in the treatment of skin conditions other than AK&#44; as has occurred with conventional PDT in recent years&#46;</p><p id="par0090" class="elsevierStylePara elsevierViewall">Although a protocol for daylight-mediated PDT has been proposed<a class="elsevierStyleCrossRef" href="#bib0285"><span class="elsevierStyleSup">57</span></a> and an international consensus paper has been published&#44;<a class="elsevierStyleCrossRef" href="#bib0265"><span class="elsevierStyleSup">53</span></a> many aspects remain speculative to a certain degree and need to be defined in the short-term so treatment can be fully standardized&#46; Some of these aspects are the obligatory use of a sunscreen&#44; the most appropriate SPF for this clinical use&#44; the ideal amount and concentration of photosensitizer&#44; whether occlusion is necessary&#44; the effective daylight dose required for PpIX activation&#44; the exact exposure time required at different times of day and in specific weather conditions&#44; the real effect of ambient temperature on efficacy&#44; and the possible use of photosensitizers other than MAL&#46;</p><p id="par0095" class="elsevierStylePara elsevierViewall">According to information available at this time&#44; Spain has an ideal climate for providing daylight PDT all year round&#46; Existing international treatment protocols are currently based on conditions in Nordic countries&#46; In order to adapt them to other settings&#44; a clinical trial is currently under way in several European countries&#44; including Spain&#44; and the results are expected to be available soon&#46; The findings will help us establish optimal procedures for applying daylight PDT in Spain&#46;</p></span><span id="sec0070" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0090">Conflicts of Interest</span><p id="par0100" class="elsevierStylePara elsevierViewall">Dr Lidia P&#233;rez has attended Spanish and international meetings about PDT at the invitation of Laboratorios Galderma SA&#59; she was a speaker at the first meeting organized by that company on PDT in Galicia&#46; Dr Yolanda Gilaberte has received consulting fees from Laboratorios Galderma SA&#59; she has received fees for speaking for that company at various conferences&#46;</p></span></span>"
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            0 => "Photodynamic therapy"
            1 => "Daylight-mediated photodynamic therapy"
            2 => "Methylester of 5-aminolevulinic acid"
            3 => "5-aminolevulinic acid"
            4 => "Actinic keratosis"
            5 => "Treatment"
          ]
        ]
      ]
      "es" => array:1 [
        0 => array:4 [
          "clase" => "keyword"
          "titulo" => "Palabras clave"
          "identificador" => "xpalclavsec345128"
          "palabras" => array:6 [
            0 => "Terapia fotodin&#225;mica"
            1 => "Terapia fotodin&#225;mica con luz de d&#237;a"
            2 => "Metil&#233;ster del &#225;cido 5-aminolevul&#237;nico"
            3 => "&#193;cido 5-aminolevul&#237;nico"
            4 => "Queratosis act&#237;nicas"
            5 => "Tratamiento"
          ]
        ]
      ]
    ]
    "tieneResumen" => true
    "resumen" => array:2 [
      "en" => array:2 [
        "titulo" => "Abstract"
        "resumen" => "<p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Photodynamic therapy &#40;PDT&#41; is an option for the treatment of actinic keratosis&#44; Bowen disease&#44; and certain types of basal cell carcinoma&#46; It is also used to treat various other types of skin condition&#44; including inflammatory and infectious disorders&#46; The main disadvantages of PDT are the time it takes to administer &#40;both for the patient and for health professionals&#41; and the pain associated with treatment&#46; Daylight-mediated PDT has recently been reported to be an alternative to the conventional approach&#46; Several studies have shown it to be similar in efficacy to and better tolerated than classic PDT for the treatment of mild to moderate actinic keratosis&#46; Nevertheless&#44; most of these studies are from northern Europe&#44; and no data have been reported from southern Europe&#46; The present article reviews the main studies published to date&#44; presents the treatment protocol&#44; and summarizes our experience with a group of treated patients&#46;</p>"
      ]
      "es" => array:2 [
        "titulo" => "Resumen"
        "resumen" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">La terapia fotodin&#225;mica &#40;TFD&#41; constituye una alternativa terap&#233;utica para las queratosis act&#237;nicas&#44; la enfermedad de Bowen y determinados carcinomas basocelulares&#46; Se utiliza adem&#225;s para el tratamiento de otras enfermedades cut&#225;neas de diversa naturaleza&#44; incluyendo enfermedades inflamatorias e infecciosas&#46; Los principales inconvenientes de la TDF convencional son el tiempo que consume su realizaci&#243;n &#40;al paciente y al personal sanitario&#41; y el dolor que produce&#46; Recientemente se ha descrito la TFD con luz de d&#237;a &#40;TFDLD&#41; como alternativa al procedimiento convencional&#46; En diversos estudios se ha mostrado similar en eficacia y mejor tolerada que la TFD cl&#225;sica en el tratamiento de queratosis act&#237;nicas leves-moderadas&#46; No obstante&#44; la mayor&#237;a de los estudios realizados proceden del norte de Europa&#44; y no existen por ahora resultados en pa&#237;ses de la latitud de Espa&#241;a&#46; El presente art&#237;culo revisa los principales estudios publicados hasta el momento&#44; expone el protocolo de utilizaci&#243;n y resume nuestra experiencia en un grupo de pacientes tratados&#46;</p>"
      ]
    ]
    "NotaPie" => array:1 [
      0 => array:2 [
        "etiqueta" => "&#9734;"
        "nota" => "<p class="elsevierStyleNotepara" id="npar0035">Please cite this article as&#58; P&#233;rez-P&#233;rez L&#44; Garc&#237;a-Gav&#237;n J&#44; Gilaberte Y&#46; Terapia fotodin&#225;mica con luz de d&#237;a en Espa&#241;a&#58; ventajas y limitaciones&#46; Actas Dermosifiliogr&#46; 2014&#59;105&#58;663&#8211;674&#46;</p>"
      ]
    ]
    "multimedia" => array:7 [
      0 => array:7 [
        "identificador" => "fig0005"
        "etiqueta" => "Figure 1"
        "tipo" => "MULTIMEDIAFIGURA"
        "mostrarFloat" => true
        "mostrarDisplay" => false
        "figura" => array:1 [
          0 => array:4 [
            "imagen" => "gr1.jpeg"
            "Alto" => 594
            "Ancho" => 1344
            "Tamanyo" => 118387
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        ]
        "descripcion" => array:1 [
          "en" => "<p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">Ambulatory photodynamic therapy using portable light sources&#46;<a class="elsevierStyleCrossRef" href="#bib0250"><span class="elsevierStyleSup">50</span></a> A&#44; Ambulight &#40;Ambicare Health Ltd&#44; St Andrews&#44; Fife&#44; UK&#41; &#40;<a class="elsevierStyleInterRef" id="intr0005" href="http://www.ambicarehealth.com/ambulight-pdt/">http&#58;&#47;&#47;www&#46;ambicarehealth&#46;com&#47;ambulight-pdt&#47;</a>&#41;&#46; This device uses an adhesive patch with a red light emitting diode &#40;LED&#41;&#8212;peak emission 640<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>25 nm&#8212;that delivers a dose of 75<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span>&#46; Light intensity is low &#40;7<span class="elsevierStyleHsp" style=""></span>mW&#47;cm<span class="elsevierStyleSup">2</span>&#41; and exposure lasts for 3<span class="elsevierStyleHsp" style=""></span>h&#46;<a class="elsevierStyleCrossRef" href="#bib0245"><span class="elsevierStyleSup">49</span></a> Image used with the permission of Ambicare Health Ltd&#46; B&#44; AK-derm &#40;Sellas GmbH&#44; Ennepetal&#44; Germany&#41;&#46; High-intensity LED &#40;70&#8211;80<span class="elsevierStyleHsp" style=""></span>mW&#47;cm<span class="elsevierStyleSup">2</span>&#41; that emits 37<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span> in 8<span class="elsevierStyleHsp" style=""></span>min&#59; peak emission is 630<span class="elsevierStyleHsp" style=""></span>nm<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>5<span class="elsevierStyleHsp" style=""></span>nm&#46; Image used with permission of Dr Helger Stege &#40;Klinikum Lippe&#44; Detmold&#44; Germany&#41;&#46;</p>"
        ]
      ]
      1 => array:7 [
        "identificador" => "fig0010"
        "etiqueta" => "Figure 2"
        "tipo" => "MULTIMEDIAFIGURA"
        "mostrarFloat" => true
        "mostrarDisplay" => false
        "figura" => array:1 [
          0 => array:4 [
            "imagen" => "gr2.jpeg"
            "Alto" => 1306
            "Ancho" => 982
            "Tamanyo" => 169157
          ]
        ]
        "descripcion" => array:1 [
          "en" => "<p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Greenhouse where the patient is exposed to daylight for photodynamic therapy at Hospital Molhom in Vejle&#44; Denmark&#46; Photograph kindly provided by Dr Peter Bjerring&#46;</p>"
        ]
      ]
      2 => array:7 [
        "identificador" => "fig0015"
        "etiqueta" => "Figure 3"
        "tipo" => "MULTIMEDIAFIGURA"
        "mostrarFloat" => true
        "mostrarDisplay" => false
        "figura" => array:1 [
          0 => array:4 [
            "imagen" => "gr3.jpeg"
            "Alto" => 3684
            "Ancho" => 1532
            "Tamanyo" => 324502
          ]
        ]
        "descripcion" => array:1 [
          "en" => "<p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">Results of treating multiple AKs with daylight photodynamic therapy &#40;PDT&#41;&#46; Photographs in the left column show lesions before treatment&#46; Photographs on the right show the same lesions after treatment&#46; Follow-up images in cases 1<span class="elsevierStyleHsp" style=""></span>to 3 &#40;Complejo Hospitalario Universitario de Vigo&#44; of the Integrated Management System in Vigo&#41; were taken 3<span class="elsevierStyleHsp" style=""></span>mo after a single PDT session&#46; Follow-up images in cases 4<span class="elsevierStyleHsp" style=""></span>and 5 &#40;Hospital San Jorge&#44; Huesca&#41; were taken 8<span class="elsevierStyleHsp" style=""></span>mo after 1 PDT session and 4<span class="elsevierStyleHsp" style=""></span>mo after 2 PDT sessions&#44; respectively&#46;</p>"
        ]
      ]
      3 => array:7 [
        "identificador" => "fig0020"
        "etiqueta" => "Figure 4"
        "tipo" => "MULTIMEDIAFIGURA"
        "mostrarFloat" => true
        "mostrarDisplay" => false
        "figura" => array:1 [
          0 => array:4 [
            "imagen" => "gr4.jpeg"
            "Alto" => 1764
            "Ancho" => 1344
            "Tamanyo" => 235805
          ]
        ]
        "descripcion" => array:1 [
          "en" => "<p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">A&#44; Baseline appearance of treated actinic keratosis lesions&#46; B&#44; Erythema and inflammation 3<span class="elsevierStyleHsp" style=""></span>h after treatment&#46; The lesions in the upper photographs &#40;1A and B&#41; were treated with daylight photodynamic therapy &#40;PDT&#41;&#46; The lesions in the lower photographs &#40;2A and B&#41; were treated with conventional PDT&#46; Photographs from Hospital San Jorge&#46;</p>"
        ]
      ]
      4 => array:7 [
        "identificador" => "tbl0005"
        "etiqueta" => "Table 1"
        "tipo" => "MULTIMEDIATABLA"
        "mostrarFloat" => true
        "mostrarDisplay" => false
        "tabla" => array:3 [
          "leyenda" => "<p id="spar0040" class="elsevierStyleSimplePara elsevierViewall">Abbreviations&#58; ADV&#44; <span class="elsevierStyleItalic">Actas Dermo-sifiliogr&#225;ficas</span>&#59; AK&#44; actinic keratosis&#59; BJD&#44; <span class="elsevierStyleItalic">British Journal of Dermatology</span>&#59; F&#44; female&#59; M&#44; male&#59; MAL&#44; methyl aminolevulinate&#59; Mar&#44; March&#59; NA&#44; not applicable&#59; NS&#44; not specified&#59; Oct&#44; October&#59; PDT&#44; photodynamic therapy&#59; Sept&#44; September&#46;</p>"
          "tablatextoimagen" => array:1 [
            0 => array:2 [
              "tabla" => array:1 [
                0 => """
                  <table border="0" frame="\n
                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" style="border-bottom: 2px solid black">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" style="border-bottom: 2px solid black">Wiegell et al&#46;<a class="elsevierStyleCrossRef" href="#bib0260"><span class="elsevierStyleSup">52</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" style="border-bottom: 2px solid black">Wiegell et al&#46;<a class="elsevierStyleCrossRef" href="#bib0280"><span class="elsevierStyleSup">56</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" style="border-bottom: 2px solid black">Wiegell et al&#46;<a class="elsevierStyleCrossRef" href="#bib0285"><span class="elsevierStyleSup">57</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" style="border-bottom: 2px solid black">Wiegell et al&#46;<a class="elsevierStyleCrossRef" href="#bib0290"><span class="elsevierStyleSup">58</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" style="border-bottom: 2px solid black">Braathen<a class="elsevierStyleCrossRef" href="#bib0295"><span class="elsevierStyleSup">59</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" style="border-bottom: 2px solid black">Shumack et al&#46;<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">a</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Journal&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">BJD&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">BJD&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">BJD&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">BJD&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ADV&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Unpublished&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Year of publication&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2008&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2009&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2011&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2012&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2012&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2012&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Study design&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Randomized&#44; controlled&#44; single blind&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Randomized&#44; double blind&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Randomized&#44; multicenter&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Randomized&#44; multicenter&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Retrospective case series&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Multicenter&#44; randomized&#44; blinded&#44; within-patient controlled&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Country&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Denmark&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Denmark&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">DenmarkNorwaySweden&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">DenmarkNorwaySweden&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Switzerland&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Australia&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">No&#46; of participating centers&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">9&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">9&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">7&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Objective&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">To compare conventional red-light PDT to daylight PDT without occlusion&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">To compare response rates and adverse events in daylight PDT with 8&#37; or 16&#37; MAL&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">To compare the efficacy of daylight PDT with MAL after 1&#46;5<span class="elsevierStyleHsp" style=""></span>or 2&#46;5<span class="elsevierStyleHsp" style=""></span>h of exposure&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">To assess the efficacy of PDT with MAL in AK of different levels of severity&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">To assess the feasibility of&#44; adherence to&#44; and satisfaction with daylight PDT in private practice&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">To assess the noninferiority of daylight PDT and the maximum pain caused&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Treatment season&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">June&#8211;Sept 2006&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">June&#8211;Sept 2007&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">June&#8211;Oct 2008&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">June&#8211;Oct 2008&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">April&#8211;Sept 2011&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Mar&#8211;May 2012&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Follow-up&#44; mo&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">No&#46; of treatment sessions&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">No&#46; of cases&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">29&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">30&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">120&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">145&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">18&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">100&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Age&#44; y<a class="elsevierStyleCrossRef" href="#tblfn0010"><span class="elsevierStyleSup">b</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">73 &#40;63&#8211;90&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">71 &#40;51&#8211;94&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">72 &#40;47&#8211;95&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">72 &#40;47&#8211;95&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">72 &#40;60&#8211;85&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">66&#46;9 &#40;42&#8211;90&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Sex&#44; M&#47;F&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">23&#47;6&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">26&#47;4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">96&#47;24&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">117&#47;28&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">12&#47;6&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">75&#47;35&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Grade of AK&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">I&#44; II&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">I&#44; II&#44; III&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">I&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">II&#44; III&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">I&#44; II&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">I&#44; II&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Principal location&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Face&#44; scalp&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Face&#44; scalp&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Face&#44; scalp&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Face&#44; scalp&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Face&#44; scalp&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Face&#44; scalp&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Surface area treated&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">80<span class="elsevierStyleHsp" style=""></span>cm<span class="elsevierStyleSup">2</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">80<span class="elsevierStyleHsp" style=""></span>cm<span class="elsevierStyleSup">2</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">At least 25<span class="elsevierStyleHsp" style=""></span>cm<span class="elsevierStyleSup">2</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">At least 25<span class="elsevierStyleHsp" style=""></span>cm<span class="elsevierStyleSup">2</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&#8211;10<span class="elsevierStyleHsp" style=""></span>AKs&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">8<span class="elsevierStyleHsp" style=""></span>&#215;<span class="elsevierStyleHsp" style=""></span>18<span class="elsevierStyleHsp" style=""></span>cm&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Sunscreen&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">None&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">P20 &#40;Riemann &#38; Co A&#47;S&#44; Hilleroed&#44; Denmark&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">P20&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">P20&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Louis Widmer F15<span class="elsevierStyleHsp" style=""></span>gel&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">SPF 30&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Time between application of sunscreen and photosensitizer&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">NA&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">15<span class="elsevierStyleHsp" style=""></span>min&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">15<span class="elsevierStyleHsp" style=""></span>min&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">15<span class="elsevierStyleHsp" style=""></span>min&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">5&#8211;15<span class="elsevierStyleHsp" style=""></span>min&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">NS&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Photosensitizing agent&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">MAL 16&#37;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">MAL 16&#37;&#44; MAL 8&#37;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">MAL 16&#37;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">MAL16&#37;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">MAL 16&#37;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">MAL 16&#37;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Amount of photosensitizer or layer thickness&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1<span class="elsevierStyleHsp" style=""></span>g&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1<span class="elsevierStyleHsp" style=""></span>g&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&#8220;Thick layer&#8221;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1-mm layer&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Layer of 0&#46;5&#8211;1 mm&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">NS&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Photosensitizer incubation&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">30<span class="elsevierStyleHsp" style=""></span>min on the daylight PDT side&#59; 3<span class="elsevierStyleHsp" style=""></span>h on the conventional PDT side&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Wait of 0&#8211;120<span class="elsevierStyleHsp" style=""></span>min before sun exposure&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&#8804;&#160;30<span class="elsevierStyleHsp" style=""></span>min&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&#8804;&#160;30<span class="elsevierStyleHsp" style=""></span>min&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">30<span class="elsevierStyleHsp" style=""></span>min&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&#8804;&#160;30<span class="elsevierStyleHsp" style=""></span>min&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Occlusion after photosensitizer application&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Yes&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">No&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">No&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">No&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">No&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">No&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Time of day for exposure&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">NS&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">11&#8211;18<span class="elsevierStyleHsp" style=""></span>h&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">8&#8211;18&#58;30<span class="elsevierStyleHsp" style=""></span>h&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">NS&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">11&#8211;16<span class="elsevierStyleHsp" style=""></span>h&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">9&#8211;18<span class="elsevierStyleHsp" style=""></span>h&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Exposure duration recommended&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2&#46;5<span class="elsevierStyleHsp" style=""></span>h&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Rest of the day&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&#46;5<span class="elsevierStyleHsp" style=""></span>h vs 2&#46;5<span class="elsevierStyleHsp" style=""></span>h&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&#46;5<span class="elsevierStyleHsp" style=""></span>h vs 2&#46;5<span class="elsevierStyleHsp" style=""></span>h&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">90<span class="elsevierStyleHsp" style=""></span>min on a sunny day&#59; 120<span class="elsevierStyleHsp" style=""></span>min on a partly cloudy or cloudy day&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2<span class="elsevierStyleHsp" style=""></span>h&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Light dose&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Effective total exposure dose&#44; 34&#46;2<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span> &#40;range&#44; 11&#46;7&#8211;65&#46;9<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span>&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Mean effective dose&#44; 30&#46;1<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span> &#40;range&#44; 1&#46;2&#8211;69&#46;8<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span>&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Mean effective dose&#44; 1&#46;5<span class="elsevierStyleHsp" style=""></span>h&#44; 8&#46;6<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span>&#59; in 2&#46;5<span class="elsevierStyleHsp" style=""></span>h&#44;<span class="elsevierStyleHsp" style=""></span>10&#46;2<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">100 patients received &#62;<span class="elsevierStyleHsp" style=""></span>3&#46;5<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span>&#59; 37 patients received &#60;<span class="elsevierStyleHsp" style=""></span>3&#46;5<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">NS&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">NS&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Weather conditions&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Sunny or partly cloudy&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3 patients exposed on cloudy or rainy days&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Sunny or partly cloudy &#40;83&#37;&#41;&#59; rainy or cloudy &#40;17&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Sunny or partly cloudy&#59; rainy or cloudy&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&#62;<span class="elsevierStyleHsp" style=""></span>12<span class="elsevierStyleHsp" style=""></span>&#176;C&#44; on days without rain&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Sunny&#47;partly cloudy&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Results at 3 mo <a class="elsevierStyleCrossRef" href="#tblfn0015"><span class="elsevierStyleSup">c</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">79&#37; reduction of AK in the treated area&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">76&#46;9&#37; reduction in number of AKs &#40;MAL 16&#37;&#41;&#59; 79&#46;5&#37; &#40;MAL 8&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Mean response rates&#58; after 1&#46;5<span class="elsevierStyleHsp" style=""></span>h&#44; 77&#46;2&#37;&#59; after 2&#46;5<span class="elsevierStyleHsp" style=""></span>h&#44; 74&#46;6&#37;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Mean response rates&#58; 75&#46;9&#37; in AK I&#59;61&#46;2&#37; in AK<span class="elsevierStyleHsp" style=""></span>II&#59;49&#46;1&#37; in AK<span class="elsevierStyleHsp" style=""></span>III&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Mean response rate&#44; 77&#37; &#40;range&#44; 0&#37;&#8211;100&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">82&#37; reduction in AKs&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Pain &#40;scale 0&#8211;10&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Mean maximum pain&#44; 2 &#40;1&#46;9&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">MAL 16&#37;&#44; 3&#46;7 &#40;2&#46;4&#41;&#59;MAL 8&#37;&#44; 3&#46;6 &#40;2&#46;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#8211;1&#44; 92&#37;&#59;4&#8211;7&#44; 7&#46;5&#37;&#59;8&#8211;10&#44; 0&#46;8&#37;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">NS&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 patient&#44; 5 out of 10&#59; others&#44; 0&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Mean&#44; 0&#46;8&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Other adverse effects&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Erythema&#44; crusting&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Erythema&#44; crusting&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Erythema&#44; 74&#37;&#59; pustules&#44; 29&#37;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">NS&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Erythema&#44; edema&#44; crusting&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">NS&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr></tbody></table>
                  """
              ]
              "imagenFichero" => array:1 [
                0 => "xTab549027.png"
              ]
            ]
          ]
          "notaPie" => array:3 [
            0 => array:3 [
              "identificador" => "tblfn0005"
              "etiqueta" => "a"
              "nota" => "<p class="elsevierStyleNotepara" id="npar0005">Unpublished study&#44; presented at the Thirteenth Conference of the European Society for Photodynamic Therapy in Dermatology &#40;Euro-PDT&#41; in Madrid&#44; May 31 to June 1&#44; 2013&#46;</p>"
            ]
            1 => array:3 [
              "identificador" => "tblfn0010"
              "etiqueta" => "b"
              "nota" => "<p class="elsevierStyleNotepara" id="npar0010">Age is shown as mean &#40;range&#41;&#46;</p>"
            ]
            2 => array:3 [
              "identificador" => "tblfn0015"
              "etiqueta" => "c"
              "nota" => "<p class="elsevierStyleNotepara" id="npar0015">Response rate refers to the number of lesions showing complete response divided by the number of lesions treated in each patient&#46;</p>"
            ]
          ]
        ]
        "descripcion" => array:1 [
          "en" => "<p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">Characteristics of the Principal Studies of Daylight-Mediated PDT Treatment of AK&#46;</p>"
        ]
      ]
      5 => array:7 [
        "identificador" => "tbl0010"
        "etiqueta" => "Table 2"
        "tipo" => "MULTIMEDIATABLA"
        "mostrarFloat" => true
        "mostrarDisplay" => false
        "tabla" => array:3 [
          "leyenda" => "<p id="spar0050" class="elsevierStyleSimplePara elsevierViewall">Abbreviations&#58; AK&#44; actinic keratosis&#59; MAL&#44; methyl aminolevulinate&#59; PDT&#44; photodynamic therapy&#59; SPF&#44; sun protection factor&#46;</p>"
          "tablatextoimagen" => array:1 [
            0 => array:2 [
              "tabla" => array:1 [
                0 => """
                  <table border="0" frame="\n
                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><tbody title="tbody"><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Candidates for therapy&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " colspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Patients with multiple AKs or field cancerization in sun-exposed areas&#46;</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Treatment period&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " colspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">In Spain&#44; all year long&#46;<a class="elsevierStyleCrossRef" href="#bib0265"><span class="elsevierStyleSup">53</span></a>In Nordic countries&#44; April to October&#46;<a class="elsevierStyleCrossRef" href="#bib0285"><span class="elsevierStyleSup">57</span></a></td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Weather conditions&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " colspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Avoid rainy<a class="elsevierStyleCrossRef" href="#bib0285"><span class="elsevierStyleSup">57</span></a> or very cloudy<a class="elsevierStyleCrossRef" href="#bib0315"><span class="elsevierStyleSup">63</span></a> days&#46;</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Procedure&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Inside the hospital&#58;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Apply a sunscreen &#40;SPF &#8805; 15 on exposed skin&#41;&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">15<span class="elsevierStyleHsp" style=""></span>min&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Scrape the lesions with a curette&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Apply a photosensitizer &#40;MAL&#41;&#44; without occlusion&#44; on the field to be treated&#46;<a class="elsevierStyleCrossRef" href="#tblfn0025"><span class="elsevierStyleSup">b</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Outside the hospital&#58;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Expose skin to natural light&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2<span class="elsevierStyleHsp" style=""></span>h&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Remove remaining photosensitizer&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Strict sun protection measures for 48<span class="elsevierStyleHsp" style=""></span>h&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">No&#46; of sessions&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " colspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">AK&#44; 1 session&#59; for other lesions&#44; variable no&#46; of sessions&#46;</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Follow-up&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " colspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Recommended&#58; Examine the skin or contact the patient by telephone 24&#8211;48<span class="elsevierStyleHsp" style=""></span>h after treatment to check status&#59; assess outcome 12&#160;wk after treatment&#46;</td></tr></tbody></table>
                  """
              ]
              "imagenFichero" => array:1 [
                0 => "xTab549026.png"
              ]
            ]
          ]
          "notaPie" => array:2 [
            0 => array:3 [
              "identificador" => "tblfn0020"
              "etiqueta" => "a"
              "nota" => "<p class="elsevierStyleNotepara" id="npar0020">Adapted from Wiegell et al&#46;<a class="elsevierStyleCrossRef" href="#bib0285"><span class="elsevierStyleSup">57</span></a></p>"
            ]
            1 => array:3 [
              "identificador" => "tblfn0025"
              "etiqueta" => "b"
              "nota" => "<p class="elsevierStyleNotepara" id="npar0025">The ideal thickness remains to be established&#46; The prescribing information recommends a layer 1<span class="elsevierStyleHsp" style=""></span>mm thick&#46; However Wulf and colleagues have reported using a thinner layer without loss of efficacy &#40;Dr&#46; H&#46; C&#46; Wulf&#44; personal communication at the thirteenth annual conference of the European Society for Photodynamic Therapy in Dermatology &#91;Euro-PDT&#93;&#44; in Madrid&#44; May 31 to June 1&#44; 2013&#41;&#46;</p>"
            ]
          ]
        ]
        "descripcion" => array:1 [
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                  \t\t\t\t">Latitudes&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t  " colspan="12" align="center" valign="\n
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                  \t\t\t\t" style="border-bottom: 2px solid black">Effective Light Dose in 2<span class="elsevierStyleHsp" style=""></span>h of Exposure on a Sunny Day&#44; J&#47;cm<span class="elsevierStyleSup">2</span></td></tr><tr title="table-row"><td class="td" title="\n
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              "identificador" => "tblfn0030"
              "etiqueta" => "a"
              "nota" => "<p class="elsevierStyleNotepara" id="npar0030">Spain extends from about the 30&#176;N &#40;Punta de Tarifa&#41; to 43&#176;47¿N &#40;Estaca de Bares&#41;&#46; Columns show months by number&#46; Months are expressed as numbers&#59; 1 indicates January&#44; 2 indicates February&#44; etc&#46; Adapted from Wiegell et al&#46;<a class="elsevierStyleCrossRef" href="#bib0265"><span class="elsevierStyleSup">53</span></a></p>"
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          "en" => "<p id="spar0055" class="elsevierStyleSimplePara elsevierViewall">Light Dose Received in 2<span class="elsevierStyleHsp" style=""></span>h of Exposure at Midday in the Middle of Each Month at the Range of Latitudes in Which Spain Is Included&#46; <a class="elsevierStyleCrossRef" href="#tblfn0030"><span class="elsevierStyleSup">a</span></a></p>"
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    ]
    "bibliografia" => array:2 [
      "titulo" => "References"
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          "identificador" => "bibs0005"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "European guidelines for topical photodynamic therapy part 1&#58; Treatment delivery and current indications-actinic keratoses&#44; Bowen&#39;s disease&#44; basal cell carcinoma"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:4 [
                            0 => "C&#46;A&#46; Morton"
                            1 => "R&#46;M&#46; Szeimies"
                            2 => "A&#46; Sidoroff"
                            3 => "L&#46;R&#46; Braathen"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1111/jdv.12031"
                      "Revista" => array:6 [
                        "tituloSerie" => "J Eur Acad Dermatol Venereol"
                        "fecha" => "2013"
                        "volumen" => "27"
                        "paginaInicial" => "536"
                        "paginaFinal" => "544"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/23181594"
                            "web" => "Medline"
                          ]
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                      ]
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            1 => array:3 [
              "identificador" => "bib0010"
              "etiqueta" => "2"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "British Association of Dermatologists Therapy Guidelines and Audit Subcommittee and the British Photodermatology Group&#46; Guidelines for topical photodynamic therapy&#58; Update"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:3 [
                            0 => "C&#46;A&#46; Morton"
                            1 => "K&#46;E&#46; McKenna"
                            2 => "L&#46;E&#46; Rhodes"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1111/j.1365-2133.2008.08882.x"
                      "Revista" => array:6 [
                        "tituloSerie" => "Br J Dermatol"
                        "fecha" => "2008"
                        "volumen" => "159"
                        "paginaInicial" => "1245"
                        "paginaFinal" => "1266"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/18945319"
                            "web" => "Medline"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "British Association of Dermatologists Therapy Guidelines and Audit Subcommittee&#44; Guidelines for the management of actinic keratoses"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:3 [
                            0 => "D&#46; De Berker"
                            1 => "J&#46;M&#46; McGregor"
                            2 => "B&#46;R&#46; Hughes"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1111/j.1365-2133.2006.07692.x"
                      "Revista" => array:6 [
                        "tituloSerie" => "Br J Dermatol"
                        "fecha" => "2007"
                        "volumen" => "156"
                        "paginaInicial" => "222"
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        "texto" => "<p id="par0105" class="elsevierStylePara elsevierViewall">We express thanks to Dr Stephen Schumack &#40;St&#46; George Dermatology and Skin Cancer Centre&#59; Kogarah&#44; Australia&#41; for information about the Australian multicenter study on daylight-mediated PDT&#46;</p> <p id="par0110" class="elsevierStylePara elsevierViewall">Thanks to Dr Beni Grinblat for information on results of his group&#39;s study of daylight-mediated PDT in Sao Paulo&#44; Brazil&#46;</p> <p id="par0115" class="elsevierStylePara elsevierViewall">Thanks to Dr Ann Le Pillouer-Prost for sending information about the study of daylight-mediated PDT in Marseille&#44; France&#46;</p> <p id="par0120" class="elsevierStylePara elsevierViewall">Thanks to Dr Helger Stege &#40;Klinikum Lippe&#44; Detmold&#44; Germany&#41; for providing information about the AK-Derm device and a photograph of it&#46;</p> <p id="par0125" class="elsevierStylePara elsevierViewall">Thanks to Dr Peter Bjerring &#40;Hospital Molhom&#44; Vejle&#44; Denmark&#41; for his kind permission to use a photograph of the greenhouse used by his department&#46;</p>"
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Novelties in Dermatology
Daylight-Mediated Photodynamic Therapy in Spain: Advantages and Disadvantages
Terapia fotodinámica con luz de día en España: ventajas y limitaciones
L. Pérez-Péreza,b,
Autor para correspondencia
lperez@pgdermatologos.com

Corresponding author.
, J. García-Gavína,b, Y. Gilabertec
a Servicio de Dermatología, Gerencia de Gestión Integrada de Vigo, Complejo Hospitalario Universitario de Vigo, Vigo, Spain
b Clínica Pérez & Gavín Dermatólogos, Vigo, Spain
c Servicio de Dermatología, Hospital de San Jorge, Huesca, Spain
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          "en" => "<p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Greenhouse where the patient is exposed to daylight for photodynamic therapy at Hospital Molhom in Vejle&#44; Denmark&#46; Photograph kindly provided by Dr Peter Bjerring&#46;</p>"
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    "textoCompleto" => "<span class="elsevierStyleSections"><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Introduction</span><p id="par0005" class="elsevierStylePara elsevierViewall">Photodynamic therapy &#40;PDT&#41; has become established as a treatment for actinic keratosis &#40;AK&#41;&#44; Bowen disease&#44; and certain types of basal cell carcinoma over the past decade because it is highly effective for these dermatoses and gives excellent cosmetic results&#46;<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1&#8211;5</span></a> PDT is currently included in clinical guidelines for treating nonmelanoma skin cancers<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1&#44;4&#44;6&#8211;10</span></a> and is considered the first line of therapy for multiple AKs and field cancerization&#46;<a class="elsevierStyleCrossRefs" href="#bib0020"><span class="elsevierStyleSup">4&#44;11&#8211;15</span></a> The range of indications for PDT has broadened in recent years and now encompasses infectious conditions&#44;<a class="elsevierStyleCrossRefs" href="#bib0080"><span class="elsevierStyleSup">16&#8211;19</span></a> inflammatory dermatoses&#44;<a class="elsevierStyleCrossRefs" href="#bib0040"><span class="elsevierStyleSup">8&#44;20&#8211;22</span></a> adnexal diseases&#44;<a class="elsevierStyleCrossRefs" href="#bib0115"><span class="elsevierStyleSup">23&#8211;25</span></a> skin tumors&#44;<a class="elsevierStyleCrossRefs" href="#bib0085"><span class="elsevierStyleSup">17&#44;26&#8211;28</span></a> and photoaging&#46;<a class="elsevierStyleCrossRefs" href="#bib0040"><span class="elsevierStyleSup">8&#44;29&#8211;31</span></a> The potential value of PDT as a preventive treatment in transplant patients or those with conditions that are difficult to manage&#44; such as Gorlin syndrome&#44; has also been recognized&#46;<a class="elsevierStyleCrossRefs" href="#bib0160"><span class="elsevierStyleSup">32&#8211;36</span></a> However&#44; the application of conventional PDT<a class="elsevierStyleCrossRef" href="#bib0050"><span class="elsevierStyleSup">10</span></a> is a laborious&#44; time-consuming process for health professionals and patients alike and requires special equipment that takes up space in a clinic&#46; The classic protocol<a class="elsevierStyleCrossRef" href="#bib0050"><span class="elsevierStyleSup">10</span></a> specifies that the photosensitizer should be applied and kept covered &#40;occlusion&#41; for a certain period&#8212;usually 4<span class="elsevierStyleHsp" style=""></span>to 6<span class="elsevierStyleHsp" style=""></span>hours or more for 5-aminolevulinic acid &#40;5-ALA&#41; or 3 hours for the 5-ALA methylester&#44; or methyl aminolevulinate &#40;MAL&#41;&#46; After incubation&#44; the area is exposed to an appropriate source of light&#46; The most common combinations of light sources and doses used in Europe are the Aktilite &#40;Galderma&#44; Lausanne&#44; Switzerland&#41; at 37<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span> for approximately 8<span class="elsevierStyleHsp" style=""></span>minutes and the Waldmann PDT 1200L &#40;Waldmann GmbH &#38; Co&#44; Villingen-Schwenningen&#44; Germany&#41; at 75<span class="elsevierStyleHsp" style=""></span>to 100<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span> for approximately 20<span class="elsevierStyleHsp" style=""></span>minutes&#46; PDT is not free of adverse effects&#46;<a class="elsevierStyleCrossRefs" href="#bib0185"><span class="elsevierStyleSup">37&#8211;44</span></a> The most common one&#44; and the most limiting&#44; is pain during illumination&#44; which must sometimes be interrupted&#59; analgesia or local or regional anesthesia may be required&#46;<a class="elsevierStyleCrossRefs" href="#bib0225"><span class="elsevierStyleSup">45&#44;46</span></a></p><p id="par0010" class="elsevierStylePara elsevierViewall">With the use of portable light sources &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>&#41; to optimize the procedure and facilitate outpatient treatment&#44;<a class="elsevierStyleCrossRefs" href="#bib0235"><span class="elsevierStyleSup">47&#8211;49</span></a> the concept of ambulatory PDT has emerged&#46;<a class="elsevierStyleCrossRef" href="#bib0250"><span class="elsevierStyleSup">50</span></a> This modality is costly&#44; however&#44; and is only useful for treating small lesions&#46; The most important methodological simplification introduced in recent years has been the therapeutic use of daylight&#46;<a class="elsevierStyleCrossRefs" href="#bib0255"><span class="elsevierStyleSup">51&#44;52</span></a></p><elsevierMultimedia ident="fig0005"></elsevierMultimedia></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0030">Daylight-Mediated PDT</span><p id="par0015" class="elsevierStylePara elsevierViewall">Daylight PDT uses a combination of direct and reflected sunlight outdoors&#46;<a class="elsevierStyleCrossRef" href="#bib0265"><span class="elsevierStyleSup">53</span></a> Using the sun as a light source has encouraged more widespread use of PDT&#44; has lowered costs considerably&#44; and has enhanced adherence&#46;</p><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0035">Clinical Trials and Other Published Studies</span><p id="par0020" class="elsevierStylePara elsevierViewall">The available publications are summarized in <a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a>&#46; Strasswimmer and Grande<a class="elsevierStyleCrossRef" href="#bib0270"><span class="elsevierStyleSup">54</span></a> suggested in 2006 that daylight could activate a photodynamic reaction&#44; a claim that others disputed&#46;<a class="elsevierStyleCrossRef" href="#bib0275"><span class="elsevierStyleSup">55</span></a> Batchelor and colleagues<a class="elsevierStyleCrossRef" href="#bib0255"><span class="elsevierStyleSup">51</span></a> were the first to report the effective use of daylight PDT to treat multiple scalp AKs in a 90-year-old patient who showed good tolerance of the session&#46; The most important work on this modality has been published since 2008 by the group of Wiegell and colleagues at Hospital Bispebjerg in Denmark&#46; Most of their studies have enrolled patients with AK &#40;<a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a>&#41;&#46; In a pilot study with 29 patients they initially demonstrated that daylight-mediated PDT was as effective against AKs as red-light PDT using a light-emitting diode as the source&#59; daylight therapy was also much less painful&#46;<a class="elsevierStyleCrossRef" href="#bib0260"><span class="elsevierStyleSup">52</span></a> The authors suggested that progressive&#44; slower activation of protoporphyrin IX &#91;PpIX&#93; by small amounts of the photosensitizer &#40;rather than rapid activation of large amounts of PpIX in the target tissue after several hours of incubation&#41; might reduce the pain associated with treatment&#59; they also suggested that since red and blue light fall within the spectrum of daylight&#44; this source might be effective in therapy and also facilitate treatment&#46; The use of natural light&#44; therefore&#44; could theoretically be useful and enhance therapy&#46; In a later study they compared the efficacy of daylight-mediated PDT using MAL at concentrations of 16&#37; and 8&#37;&#44; observing no differences in response rates&#44; grades of erythema or pain between patients using the different concentrations&#46;<a class="elsevierStyleCrossRef" href="#bib0280"><span class="elsevierStyleSup">56</span></a> The authors suggested that MAL concentrations lower than the usual one of 16&#37; could be effective&#46; In 2011 they published the results of the first multicenter trial of daylight PDT in patients with nonhyperkeratotic AKs&#44; finding that outcomes after exposures of 1&#46;5<span class="elsevierStyleHsp" style=""></span>and 2&#46;5<span class="elsevierStyleHsp" style=""></span>hours were similar&#46;<a class="elsevierStyleCrossRef" href="#bib0285"><span class="elsevierStyleSup">57</span></a> The authors recommended a 2-hour exposure time&#46; The 2 later studies confirmed the earlier findings that daylight PDT is effective in nonhyperkeratotic AK&#46; However&#44; this modality proved less effective on hyperkeratotic AK lesions&#46;<a class="elsevierStyleCrossRef" href="#bib0290"><span class="elsevierStyleSup">58</span></a></p><elsevierMultimedia ident="tbl0005"></elsevierMultimedia><p id="par0130" class="elsevierStylePara elsevierViewall">Braathen<a class="elsevierStyleCrossRef" href="#bib0295"><span class="elsevierStyleSup">59</span></a> reported similar results for daylight PDT used to treat facial and scalp AKs in a series of 18 patients in a private practice setting&#46;</p><p id="par0030" class="elsevierStylePara elsevierViewall">The results of a multicenter randomized controlled trial in Australia were recently presented by Shumack and colleagues at the Euro-PDT meeting &#40;the annual conference of the European Society for Photodynamic Therapy in Dermatology&#41; in Madrid from May 31 to June 1&#44; 2013&#46; This study showed that daylight PDT was not inferior to conventional PDT and that it was better tolerated and preferred by both patients and the investigators&#46; This study confirmed the findings of earlier ones done in Nordic settings<a class="elsevierStyleCrossRefs" href="#bib0260"><span class="elsevierStyleSup">52&#44;56&#8211;58</span></a> and was the first undertaken in a country with a climate that is very different from that of northern Europe&#46; The same conference brought together reports of other smaller trials of daylight PDT&#46; In one study&#44; Grinblat and colleagues used 1 to 3 sessions to treat 14 patients with grade I or II AKs&#46; The setting was Brazil and exposure was performed between 9<span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleSmallCaps">am</span> and 11&#58;30<span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleSmallCaps">am</span> for a period of 60<span class="elsevierStyleHsp" style=""></span>to 90<span class="elsevierStyleHsp" style=""></span>minutes&#46; Most patients experienced improvement&#46; In the Netherlands&#44; Venema used daylight-mediated PDT to treat 2 patients with actinic cheilitis&#44; observing good clinical and cosmetic results&#46; Tolerance was excellent&#46; Le Pillouer-Prost presented the findings of a French study of 17 patients with grade I to III AKs&#46; Five of the patients had been pretreated with fractionated carbon dioxide laser therapy&#46; After 1 or 2 sessions of daylight PDT&#44; depending on lesion thickness&#44; most AKs in the pretreated group had resolved&#46; Lesions had also cleared in 10 of the 12 patients who had not been pretreated&#46; Finally&#44; Enk&#44; described using this modality in 14 patients with nonulcerated cutaneous leishmaniasis in Israel&#46; The patients were exposed to daylight in the hospital&#39;s garden for 2&#46;5<span class="elsevierStyleHsp" style=""></span>hours immediately after application of MAL&#46; The cure rate was 86&#37; after an average of 5 weekly sessions&#46; Scarring was minimal and the procedure was painless&#46;</p><p id="par0135" class="elsevierStylePara elsevierViewall">The main conclusions of the most important studies and a discussion of the details of the different approaches to this form of PDT can be found in a Euro-PDT consensus paper&#46;<a class="elsevierStyleCrossRef" href="#bib0265"><span class="elsevierStyleSup">53</span></a></p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0040">Treatment Protocol</span><p id="par0040" class="elsevierStylePara elsevierViewall">The only treatment protocol currently available for daylight-mediated PDT was proposed by Wiegell and colleagues<a class="elsevierStyleCrossRef" href="#bib0285"><span class="elsevierStyleSup">57</span></a> and is summarized in <a class="elsevierStyleCrossRef" href="#tbl0010">Table 2</a>&#46; Considering that this PDT modality is at present off-label&#44; the patient must be adequately informed about the procedure&#44; its adverse effects&#44; and efficacy&#46; Written informed consent must be obtained&#46; In order to assess the final outcome&#44; baseline photographs of the area to be treated should be taken&#44; and it may be useful to count and map the lesions in the field&#46; Pretreatment with topical keratolytic agents may be advisable in some cases&#46; Once the patient is in the treatment room&#44; a sunscreen is applied to all exposed areas of the skin&#44; even the area targeted for treatment&#46; The sunscreen should provide a sun protection factor &#40;SPF&#41; of at least 20 and not contain physical&#44; or inorganic&#44; filters&#46; Approximately 15<span class="elsevierStyleHsp" style=""></span>minutes after sunscreen application&#44; the lesions should be scraped with a curette&#46; A layer of MAL cream approximately 1<span class="elsevierStyleHsp" style=""></span>mm thick is then spread on the field to be treated&#46; Occlusion is not needed&#46; The patient should be outdoors and start exposing the area to daylight within half an hour of MAL application&#46; The recommended duration of exposure is 2 hours&#44; after which the remaining photosensitizer is removed and the skin is cleaned&#46; The treated field should be protected from sunlight the rest of the day&#46; Sun protection measures should be continued for at least the next 48<span class="elsevierStyleHsp" style=""></span>hours&#46;</p><elsevierMultimedia ident="tbl0010"></elsevierMultimedia></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0045">Key Questions and Concerns</span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0050">What Patients Are Candidates for Daylight-Mediated PDT&#63;</span><p id="par0140" class="elsevierStylePara elsevierViewall">This modality is mainly appropriate for cooperative patients who have multiple AKs &#40;preferably grade I or II&#41; or field cancerization in sun-exposed areas and who find conventional PDT to be very painful&#46; Daylight PDT will probably gradually come to be used for skin diseases other than AK&#46;</p></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0055">What Light Dose Is Needed for Effective Activation of PpIX&#63;</span><p id="par0050" class="elsevierStylePara elsevierViewall">The amount of irradiation received in 2<span class="elsevierStyleHsp" style=""></span>hours of direct sunlight at midday varies greatly according to geographic location&#44; weather conditions&#44; and season&#46;<a class="elsevierStyleCrossRef" href="#bib0300"><span class="elsevierStyleSup">60</span></a> The threshold dose for PpIX activation &#40;at which daylight PDT will be effective for destroying AKs&#41; varies in studies published to date &#40;8&#44; 6&#44; and 3&#46;5<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span>&#41;&#46;<a class="elsevierStyleCrossRefs" href="#bib0265"><span class="elsevierStyleSup">53&#44;57&#44;58&#44;60</span></a> Until the effective dose is established more precisely&#44; a threshold of 8<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span> is currently considered adequate to ensure that therapy will be effective&#46;<a class="elsevierStyleCrossRef" href="#bib0300"><span class="elsevierStyleSup">60</span></a> Using meteorological models and dosimeters installed at a number of geographic locations it has been possible to establish the effective light doses for activating PpIX in 2<span class="elsevierStyleHsp" style=""></span>hours of exposure at midday on the fifteenth day of each month at different latitudes&#46;<a class="elsevierStyleCrossRef" href="#bib0265"><span class="elsevierStyleSup">53</span></a> Accordingly&#44; it would be possible to reach daylight doses over 8<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span> in Spain in any month&#44; depending on weather conditions&#59; this treatment could therefore be completed within the 2-hour time frame all year round<a class="elsevierStyleCrossRef" href="#bib0265"><span class="elsevierStyleSup">53</span></a> &#40;<a class="elsevierStyleCrossRef" href="#tbl0015">Table 3</a>&#41;&#46;</p><elsevierMultimedia ident="tbl0015"></elsevierMultimedia></span><span id="sec0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0060">How Should the Lesions Be Exposed to Daylight&#63;</span><p id="par0055" class="elsevierStylePara elsevierViewall">Exposure should take place outside in the middle of the day and last 2<span class="elsevierStyleHsp" style=""></span>hours&#46;<a class="elsevierStyleCrossRef" href="#bib0285"><span class="elsevierStyleSup">57</span></a> However&#44; Grinblat and colleagues &#40;unpublished&#44; Euro-PDT meeting&#41; used shorter exposure times of 60<span class="elsevierStyleHsp" style=""></span>to 90<span class="elsevierStyleHsp" style=""></span>minutes and observed results that were similar to those of multicenter studies&#46;<a class="elsevierStyleCrossRefs" href="#bib0285"><span class="elsevierStyleSup">57&#44;58</span></a> Considering at the PpIX activation range corresponds to visible light&#44; which passes through glass&#44; Hospital Molhom in Vejle&#44; Denmark&#44; uses a glass structure to protect patients from certain weather conditions and increase comfort during exposure &#40;<a class="elsevierStyleCrossRef" href="#fig0010">Fig&#46; 2</a>&#41;&#46;</p><elsevierMultimedia ident="fig0010"></elsevierMultimedia></span><span id="sec0045" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0065">What Period of the Year Is Most Appropriate for Daylight-Mediated PDT&#63;</span><p id="par0060" class="elsevierStylePara elsevierViewall">It seems to be possible to provide treatment at midday all year round in Spain unless there is a thick cloud cover&#46;<a class="elsevierStyleCrossRef" href="#bib0265"><span class="elsevierStyleSup">53</span></a> Temperature may be a limiting factor&#44; however&#44; as studies in vitro and in mice suggest that low temperatures reduce PpIX production&#46;<a class="elsevierStyleCrossRefs" href="#bib0300"><span class="elsevierStyleSup">60&#8211;62</span></a> Low temperatures also make it difficult for the patient to stay outside during exposure&#46; A temperature range of 10<span class="elsevierStyleHsp" style=""></span>&#176;C to 35<span class="elsevierStyleHsp" style=""></span>&#176;C for daylight PDT has been recommended&#44;<a class="elsevierStyleCrossRef" href="#bib0300"><span class="elsevierStyleSup">60</span></a> but there is room for variation according to patient characteristics and exposure location&#46; To date&#44; no studies have demonstrated that there are differences in treatment efficacy outside this temperature range&#46;</p><p id="par0065" class="elsevierStylePara elsevierViewall">Wiegel and colleagues<a class="elsevierStyleCrossRef" href="#bib0300"><span class="elsevierStyleSup">60</span></a> a linear association between the UV index and the light dose that activates PpIX production during exposure at midday &#40;11<span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleSmallCaps">am</span> to 1<span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleSmallCaps">pm</span>&#41; for 2<span class="elsevierStyleHsp" style=""></span>hours&#59; when the UV index exceeds 3&#44; patients receive over 8<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span> in this period&#46; Weather conditions also play a part&#44; as the effective daylight dose can decrease 25&#37; on partly cloudy days&#44; 50&#37; on cloudy days&#44; and 75&#37; on rainy days&#46;<a class="elsevierStyleCrossRefs" href="#bib0265"><span class="elsevierStyleSup">53&#44;60</span></a> The exposure time required on such days has not been determined&#44; and although some authors recommend not scheduling this modality of PDT on rainy<a class="elsevierStyleCrossRef" href="#bib0285"><span class="elsevierStyleSup">57</span></a> or very overcast<a class="elsevierStyleCrossRef" href="#bib0315"><span class="elsevierStyleSup">63</span></a> days&#44; it would be useful to more precisely determine the required conditions for delivering the minimum effective light dose&#46;</p></span><span id="sec0050" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0070">Why Is a Sunscreen Needed and What Sunscreen Is Appropriate for PDT&#63;</span><p id="par0070" class="elsevierStylePara elsevierViewall">The recommendation to use a sunscreen aims mainly to prevent the adverse effects of UV radiation during exposure to sunlight&#46; Sunscreens used to date have varied in their SPF levels&#44; ranging from SPF 15&#44;<a class="elsevierStyleCrossRef" href="#bib0295"><span class="elsevierStyleSup">59</span></a> to SPF 20&#44;<a class="elsevierStyleCrossRefs" href="#bib0265"><span class="elsevierStyleSup">53&#44;57</span></a> to SPF 30 and SPF 50 &#40;by Grinblat and colleagues and by Le Pillouer-Prost&#44; respectively&#59; unpublished reports&#44; Euro-PDT meeting&#41;&#46; Similar outcomes have been observed with all of these sunscreens&#46; It is important to use one that does not contain mineral filters&#44; which might block the visible light necessary for PpIX activation in addition to UV radiation&#46; A list of sunscreens appropriate for use in daylight-mediated PDT has been provided by the Spanish company Laboratorios Galderma SA&#46; It includes the following products&#58; from Laboratorios Uriage&#44; Bariesun cream&#44; SPF 30&#47;50&#59; from Laboratorios Ducray&#44; Melascreen solar emulsion&#44; SPF 50&#59; from Laboratorios Eucerin&#44; Sun Spray transparent&#44; SPF 30&#47;50&#59; from Laboratorios Bioderma&#44; AKN Mat SPF 30&#47;UV-A 13&#44; MAX cream&#44; SPF 50&#43;&#47;UV-A&#160;38 and AKN Spray SPF 30&#47;UV-A13&#59; and from Laboratorios ISDIN&#44; a transparent SPF 30 gel-cream&#46;</p></span><span id="sec0055" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0075">What Limitations Affect Daylight-Mediated PDT&#63;</span><p id="par0075" class="elsevierStylePara elsevierViewall">Daylight-mediated PDT is of great benefit for certain patients and for dermatologists who have neither the time nor the infrastructure for conventional PDT&#46; However&#44; there are certain limitations&#44; such as the difficulty of scheduling sessions because of unpredictable weather and the constraints imposed by climate conditions in some geographic areas&#46; At northern European latitudes&#44; solar radiation is insufficient and temperatures are too low to accommodate sessions during some seasons &#40;autumn and winter&#41;&#46; Conditions in countries like Spain are different&#46; It is still unclear whether very intense exposure for 2<span class="elsevierStyleHsp" style=""></span>hours at our latitudes might be risky for our patients&#44; but the Australian clinical trial described above has shown that daylight-mediated PDT is effective and safe in countries with strong solar radiation&#46; Another problematic issue is the lack of rigorous control over therapy during the ambulatory outdoor period of the procedure&#44; as the patient is the one who monitors illumination&#46; To date&#44; we still do not know the impact these possible differences might have on the effectiveness of therapy&#46; In addition&#44; daylight PDT seems to be less effective than conventional PDT for grade III AKs&#44; and for the moment we lack sufficient evidence to support daylight-mediated PDT for other types of skin lesions&#46; We expect to have new data in the future&#44; however&#46;</p></span></span></span><span id="sec0060" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0080">Our Hospital Departments&#8217; Experience</span><p id="par0080" class="elsevierStylePara elsevierViewall">The dermatology services under the Integrated Management System in Vigo &#40;at Complejo Hospitalario Universitario de Vigo &#91;CHUVI&#93; and Hospital San Jorge in Huesca &#91;HSJ&#93;&#41; have used daylight-mediated PDT in 35 &#40;CHUVI&#41; and 9 &#40;HSJ&#41; patients with multiple grade I&#44; II or III AKs&#44; or field cancerization&#46; Lesions were located on the face and&#47;or scalp &#40;CHUVI and HSJ&#41; or legs &#40;HSJ&#41;&#46; Most patients were treated in a single session&#44; but some underwent 2 sessions &#40;HSJ&#41;&#46; The results &#40;<a class="elsevierStyleCrossRef" href="#fig0015">Fig&#46; 3</a>&#41; were similar to those achieved with conventional PDT for grade I or II AKs but inferior for grade III AKs&#46; The main adverse effects were inflammation and crusting in the treated area&#46; These effects were less intense&#44; however&#44; than those usually seen after conventional PDT &#40;<a class="elsevierStyleCrossRef" href="#fig0020">Fig&#46; 4</a>&#41;&#46; Patients treated in the CHUVI reported less pain &#40;scores&#44; 0&#8211;3 on a scale of 0 to 10&#41; after daylight mediated PDT than after conventional PDT &#40;scores&#44; 6&#8211;10&#41; Most patients who had previously undergone conventional PDT expressed a clear preference for the daylight-mediated modality&#46; The use of this approach allowed us to schedule treatment more quickly and accommodate all of them&#46; Daylight was particularly useful for treating CHUVI patients who lived outside the city&#44; and this choice also considerably reduced the amount of time the CHUVI staff spent preparing and supervising therapy&#46;</p><elsevierMultimedia ident="fig0015"></elsevierMultimedia><elsevierMultimedia ident="fig0020"></elsevierMultimedia></span><span id="sec0065" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0085">Conclusions</span><p id="par0085" class="elsevierStylePara elsevierViewall">Daylight-mediated PDT is an important new modality in dermatology&#46; It has proven to be as effective as conventional PDT for treating AK and is a technically simpler method&#46; Tolerance of therapy has improved considerably with the use of natural light&#46; Both patients and specialists often express a preference for daylight PDT because the ambulatory procedure is simple and easy to organize&#46; However&#44; important disadvantages are that it is difficult to schedule because of weather conditions at certain times of the year and because light exposure is difficult to control&#46; Over time&#44; this modality will probably begin to have applications in the treatment of skin conditions other than AK&#44; as has occurred with conventional PDT in recent years&#46;</p><p id="par0090" class="elsevierStylePara elsevierViewall">Although a protocol for daylight-mediated PDT has been proposed<a class="elsevierStyleCrossRef" href="#bib0285"><span class="elsevierStyleSup">57</span></a> and an international consensus paper has been published&#44;<a class="elsevierStyleCrossRef" href="#bib0265"><span class="elsevierStyleSup">53</span></a> many aspects remain speculative to a certain degree and need to be defined in the short-term so treatment can be fully standardized&#46; Some of these aspects are the obligatory use of a sunscreen&#44; the most appropriate SPF for this clinical use&#44; the ideal amount and concentration of photosensitizer&#44; whether occlusion is necessary&#44; the effective daylight dose required for PpIX activation&#44; the exact exposure time required at different times of day and in specific weather conditions&#44; the real effect of ambient temperature on efficacy&#44; and the possible use of photosensitizers other than MAL&#46;</p><p id="par0095" class="elsevierStylePara elsevierViewall">According to information available at this time&#44; Spain has an ideal climate for providing daylight PDT all year round&#46; Existing international treatment protocols are currently based on conditions in Nordic countries&#46; In order to adapt them to other settings&#44; a clinical trial is currently under way in several European countries&#44; including Spain&#44; and the results are expected to be available soon&#46; The findings will help us establish optimal procedures for applying daylight PDT in Spain&#46;</p></span><span id="sec0070" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0090">Conflicts of Interest</span><p id="par0100" class="elsevierStylePara elsevierViewall">Dr Lidia P&#233;rez has attended Spanish and international meetings about PDT at the invitation of Laboratorios Galderma SA&#59; she was a speaker at the first meeting organized by that company on PDT in Galicia&#46; Dr Yolanda Gilaberte has received consulting fees from Laboratorios Galderma SA&#59; she has received fees for speaking for that company at various conferences&#46;</p></span></span>"
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          "titulo" => "Abstract"
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          "identificador" => "xpalclavsec345127"
          "titulo" => "Keywords"
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        2 => array:2 [
          "identificador" => "xres365528"
          "titulo" => "Resumen"
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          "titulo" => "Palabras clave"
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        4 => array:2 [
          "identificador" => "sec0005"
          "titulo" => "Introduction"
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          "identificador" => "sec0010"
          "titulo" => "Daylight-Mediated PDT"
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            0 => array:2 [
              "identificador" => "sec0015"
              "titulo" => "Clinical Trials and Other Published Studies"
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            1 => array:2 [
              "identificador" => "sec0020"
              "titulo" => "Treatment Protocol"
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            2 => array:3 [
              "identificador" => "sec0025"
              "titulo" => "Key Questions and Concerns"
              "secciones" => array:6 [
                0 => array:2 [
                  "identificador" => "sec0030"
                  "titulo" => "What Patients Are Candidates for Daylight-Mediated PDT&#63;"
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                1 => array:2 [
                  "identificador" => "sec0035"
                  "titulo" => "What Light Dose Is Needed for Effective Activation of PpIX&#63;"
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                  "identificador" => "sec0040"
                  "titulo" => "How Should the Lesions Be Exposed to Daylight&#63;"
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                3 => array:2 [
                  "identificador" => "sec0045"
                  "titulo" => "What Period of the Year Is Most Appropriate for Daylight-Mediated PDT&#63;"
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                4 => array:2 [
                  "identificador" => "sec0050"
                  "titulo" => "Why Is a Sunscreen Needed and What Sunscreen Is Appropriate for PDT&#63;"
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                5 => array:2 [
                  "identificador" => "sec0055"
                  "titulo" => "What Limitations Affect Daylight-Mediated PDT&#63;"
                ]
              ]
            ]
          ]
        ]
        6 => array:2 [
          "identificador" => "sec0060"
          "titulo" => "Our Hospital Departments&#8217; Experience"
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        7 => array:2 [
          "identificador" => "sec0065"
          "titulo" => "Conclusions"
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          "identificador" => "sec0070"
          "titulo" => "Conflicts of Interest"
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          "identificador" => "xack91055"
          "titulo" => "Acknowledgments"
        ]
        10 => array:1 [
          "titulo" => "References"
        ]
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    "pdfFichero" => "main.pdf"
    "tienePdf" => true
    "fechaRecibido" => "2013-08-16"
    "fechaAceptado" => "2013-10-09"
    "PalabrasClave" => array:2 [
      "en" => array:1 [
        0 => array:4 [
          "clase" => "keyword"
          "titulo" => "Keywords"
          "identificador" => "xpalclavsec345127"
          "palabras" => array:6 [
            0 => "Photodynamic therapy"
            1 => "Daylight-mediated photodynamic therapy"
            2 => "Methylester of 5-aminolevulinic acid"
            3 => "5-aminolevulinic acid"
            4 => "Actinic keratosis"
            5 => "Treatment"
          ]
        ]
      ]
      "es" => array:1 [
        0 => array:4 [
          "clase" => "keyword"
          "titulo" => "Palabras clave"
          "identificador" => "xpalclavsec345128"
          "palabras" => array:6 [
            0 => "Terapia fotodin&#225;mica"
            1 => "Terapia fotodin&#225;mica con luz de d&#237;a"
            2 => "Metil&#233;ster del &#225;cido 5-aminolevul&#237;nico"
            3 => "&#193;cido 5-aminolevul&#237;nico"
            4 => "Queratosis act&#237;nicas"
            5 => "Tratamiento"
          ]
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    "resumen" => array:2 [
      "en" => array:2 [
        "titulo" => "Abstract"
        "resumen" => "<p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Photodynamic therapy &#40;PDT&#41; is an option for the treatment of actinic keratosis&#44; Bowen disease&#44; and certain types of basal cell carcinoma&#46; It is also used to treat various other types of skin condition&#44; including inflammatory and infectious disorders&#46; The main disadvantages of PDT are the time it takes to administer &#40;both for the patient and for health professionals&#41; and the pain associated with treatment&#46; Daylight-mediated PDT has recently been reported to be an alternative to the conventional approach&#46; Several studies have shown it to be similar in efficacy to and better tolerated than classic PDT for the treatment of mild to moderate actinic keratosis&#46; Nevertheless&#44; most of these studies are from northern Europe&#44; and no data have been reported from southern Europe&#46; The present article reviews the main studies published to date&#44; presents the treatment protocol&#44; and summarizes our experience with a group of treated patients&#46;</p>"
      ]
      "es" => array:2 [
        "titulo" => "Resumen"
        "resumen" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">La terapia fotodin&#225;mica &#40;TFD&#41; constituye una alternativa terap&#233;utica para las queratosis act&#237;nicas&#44; la enfermedad de Bowen y determinados carcinomas basocelulares&#46; Se utiliza adem&#225;s para el tratamiento de otras enfermedades cut&#225;neas de diversa naturaleza&#44; incluyendo enfermedades inflamatorias e infecciosas&#46; Los principales inconvenientes de la TDF convencional son el tiempo que consume su realizaci&#243;n &#40;al paciente y al personal sanitario&#41; y el dolor que produce&#46; Recientemente se ha descrito la TFD con luz de d&#237;a &#40;TFDLD&#41; como alternativa al procedimiento convencional&#46; En diversos estudios se ha mostrado similar en eficacia y mejor tolerada que la TFD cl&#225;sica en el tratamiento de queratosis act&#237;nicas leves-moderadas&#46; No obstante&#44; la mayor&#237;a de los estudios realizados proceden del norte de Europa&#44; y no existen por ahora resultados en pa&#237;ses de la latitud de Espa&#241;a&#46; El presente art&#237;culo revisa los principales estudios publicados hasta el momento&#44; expone el protocolo de utilizaci&#243;n y resume nuestra experiencia en un grupo de pacientes tratados&#46;</p>"
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    "NotaPie" => array:1 [
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        "etiqueta" => "&#9734;"
        "nota" => "<p class="elsevierStyleNotepara" id="npar0035">Please cite this article as&#58; P&#233;rez-P&#233;rez L&#44; Garc&#237;a-Gav&#237;n J&#44; Gilaberte Y&#46; Terapia fotodin&#225;mica con luz de d&#237;a en Espa&#241;a&#58; ventajas y limitaciones&#46; Actas Dermosifiliogr&#46; 2014&#59;105&#58;663&#8211;674&#46;</p>"
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          "en" => "<p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">Ambulatory photodynamic therapy using portable light sources&#46;<a class="elsevierStyleCrossRef" href="#bib0250"><span class="elsevierStyleSup">50</span></a> A&#44; Ambulight &#40;Ambicare Health Ltd&#44; St Andrews&#44; Fife&#44; UK&#41; &#40;<a class="elsevierStyleInterRef" id="intr0005" href="http://www.ambicarehealth.com/ambulight-pdt/">http&#58;&#47;&#47;www&#46;ambicarehealth&#46;com&#47;ambulight-pdt&#47;</a>&#41;&#46; This device uses an adhesive patch with a red light emitting diode &#40;LED&#41;&#8212;peak emission 640<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>25 nm&#8212;that delivers a dose of 75<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span>&#46; Light intensity is low &#40;7<span class="elsevierStyleHsp" style=""></span>mW&#47;cm<span class="elsevierStyleSup">2</span>&#41; and exposure lasts for 3<span class="elsevierStyleHsp" style=""></span>h&#46;<a class="elsevierStyleCrossRef" href="#bib0245"><span class="elsevierStyleSup">49</span></a> Image used with the permission of Ambicare Health Ltd&#46; B&#44; AK-derm &#40;Sellas GmbH&#44; Ennepetal&#44; Germany&#41;&#46; High-intensity LED &#40;70&#8211;80<span class="elsevierStyleHsp" style=""></span>mW&#47;cm<span class="elsevierStyleSup">2</span>&#41; that emits 37<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span> in 8<span class="elsevierStyleHsp" style=""></span>min&#59; peak emission is 630<span class="elsevierStyleHsp" style=""></span>nm<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>5<span class="elsevierStyleHsp" style=""></span>nm&#46; Image used with permission of Dr Helger Stege &#40;Klinikum Lippe&#44; Detmold&#44; Germany&#41;&#46;</p>"
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          "en" => "<p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Greenhouse where the patient is exposed to daylight for photodynamic therapy at Hospital Molhom in Vejle&#44; Denmark&#46; Photograph kindly provided by Dr Peter Bjerring&#46;</p>"
        ]
      ]
      2 => array:7 [
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        "etiqueta" => "Figure 3"
        "tipo" => "MULTIMEDIAFIGURA"
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          "en" => "<p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">Results of treating multiple AKs with daylight photodynamic therapy &#40;PDT&#41;&#46; Photographs in the left column show lesions before treatment&#46; Photographs on the right show the same lesions after treatment&#46; Follow-up images in cases 1<span class="elsevierStyleHsp" style=""></span>to 3 &#40;Complejo Hospitalario Universitario de Vigo&#44; of the Integrated Management System in Vigo&#41; were taken 3<span class="elsevierStyleHsp" style=""></span>mo after a single PDT session&#46; Follow-up images in cases 4<span class="elsevierStyleHsp" style=""></span>and 5 &#40;Hospital San Jorge&#44; Huesca&#41; were taken 8<span class="elsevierStyleHsp" style=""></span>mo after 1 PDT session and 4<span class="elsevierStyleHsp" style=""></span>mo after 2 PDT sessions&#44; respectively&#46;</p>"
        ]
      ]
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        "etiqueta" => "Figure 4"
        "tipo" => "MULTIMEDIAFIGURA"
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          "en" => "<p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">A&#44; Baseline appearance of treated actinic keratosis lesions&#46; B&#44; Erythema and inflammation 3<span class="elsevierStyleHsp" style=""></span>h after treatment&#46; The lesions in the upper photographs &#40;1A and B&#41; were treated with daylight photodynamic therapy &#40;PDT&#41;&#46; The lesions in the lower photographs &#40;2A and B&#41; were treated with conventional PDT&#46; Photographs from Hospital San Jorge&#46;</p>"
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          "leyenda" => "<p id="spar0040" class="elsevierStyleSimplePara elsevierViewall">Abbreviations&#58; ADV&#44; <span class="elsevierStyleItalic">Actas Dermo-sifiliogr&#225;ficas</span>&#59; AK&#44; actinic keratosis&#59; BJD&#44; <span class="elsevierStyleItalic">British Journal of Dermatology</span>&#59; F&#44; female&#59; M&#44; male&#59; MAL&#44; methyl aminolevulinate&#59; Mar&#44; March&#59; NA&#44; not applicable&#59; NS&#44; not specified&#59; Oct&#44; October&#59; PDT&#44; photodynamic therapy&#59; Sept&#44; September&#46;</p>"
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                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" style="border-bottom: 2px solid black">&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t" style="border-bottom: 2px solid black">Wiegell et al&#46;<a class="elsevierStyleCrossRef" href="#bib0260"><span class="elsevierStyleSup">52</span></a>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t" style="border-bottom: 2px solid black">Wiegell et al&#46;<a class="elsevierStyleCrossRef" href="#bib0280"><span class="elsevierStyleSup">56</span></a>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t" style="border-bottom: 2px solid black">Wiegell et al&#46;<a class="elsevierStyleCrossRef" href="#bib0285"><span class="elsevierStyleSup">57</span></a>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t" style="border-bottom: 2px solid black">Wiegell et al&#46;<a class="elsevierStyleCrossRef" href="#bib0290"><span class="elsevierStyleSup">58</span></a>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t" style="border-bottom: 2px solid black">Braathen<a class="elsevierStyleCrossRef" href="#bib0295"><span class="elsevierStyleSup">59</span></a>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t" style="border-bottom: 2px solid black">Shumack et al&#46;<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">a</span></a>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">Journal&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttop\n
                  \t\t\t\t">BJD&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">BJD&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">BJD&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ADV&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Unpublished&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Year of publication&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2008&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2009&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2011&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2012&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2012&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2012&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Study design&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Randomized&#44; controlled&#44; single blind&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Randomized&#44; double blind&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Randomized&#44; multicenter&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Randomized&#44; multicenter&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Retrospective case series&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Multicenter&#44; randomized&#44; blinded&#44; within-patient controlled&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Country&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Denmark&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Denmark&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">DenmarkNorwaySweden&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">DenmarkNorwaySweden&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Switzerland&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Australia&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">No&#46; of participating centers&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">9&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">9&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">7&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Objective&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">To compare conventional red-light PDT to daylight PDT without occlusion&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">To compare response rates and adverse events in daylight PDT with 8&#37; or 16&#37; MAL&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">To compare the efficacy of daylight PDT with MAL after 1&#46;5<span class="elsevierStyleHsp" style=""></span>or 2&#46;5<span class="elsevierStyleHsp" style=""></span>h of exposure&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">To assess the efficacy of PDT with MAL in AK of different levels of severity&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">To assess the feasibility of&#44; adherence to&#44; and satisfaction with daylight PDT in private practice&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">To assess the noninferiority of daylight PDT and the maximum pain caused&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Treatment season&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">June&#8211;Sept 2006&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">June&#8211;Sept 2007&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">June&#8211;Oct 2008&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">June&#8211;Oct 2008&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">April&#8211;Sept 2011&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Mar&#8211;May 2012&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Follow-up&#44; mo&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">No&#46; of treatment sessions&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">No&#46; of cases&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">29&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">30&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">120&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">145&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">18&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">100&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Age&#44; y<a class="elsevierStyleCrossRef" href="#tblfn0010"><span class="elsevierStyleSup">b</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">73 &#40;63&#8211;90&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">71 &#40;51&#8211;94&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">72 &#40;47&#8211;95&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">72 &#40;47&#8211;95&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">72 &#40;60&#8211;85&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">66&#46;9 &#40;42&#8211;90&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Sex&#44; M&#47;F&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">23&#47;6&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">26&#47;4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">96&#47;24&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">117&#47;28&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">12&#47;6&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">75&#47;35&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Grade of AK&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">I&#44; II&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">I&#44; II&#44; III&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">I&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">II&#44; III&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">I&#44; II&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">I&#44; II&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Principal location&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Face&#44; scalp&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Face&#44; scalp&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Face&#44; scalp&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Face&#44; scalp&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Face&#44; scalp&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Face&#44; scalp&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Surface area treated&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">80<span class="elsevierStyleHsp" style=""></span>cm<span class="elsevierStyleSup">2</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">80<span class="elsevierStyleHsp" style=""></span>cm<span class="elsevierStyleSup">2</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">At least 25<span class="elsevierStyleHsp" style=""></span>cm<span class="elsevierStyleSup">2</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">At least 25<span class="elsevierStyleHsp" style=""></span>cm<span class="elsevierStyleSup">2</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&#8211;10<span class="elsevierStyleHsp" style=""></span>AKs&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">8<span class="elsevierStyleHsp" style=""></span>&#215;<span class="elsevierStyleHsp" style=""></span>18<span class="elsevierStyleHsp" style=""></span>cm&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Sunscreen&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">None&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">P20 &#40;Riemann &#38; Co A&#47;S&#44; Hilleroed&#44; Denmark&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">P20&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">P20&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Louis Widmer F15<span class="elsevierStyleHsp" style=""></span>gel&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">SPF 30&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Time between application of sunscreen and photosensitizer&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">NA&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">15<span class="elsevierStyleHsp" style=""></span>min&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">15<span class="elsevierStyleHsp" style=""></span>min&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">15<span class="elsevierStyleHsp" style=""></span>min&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">5&#8211;15<span class="elsevierStyleHsp" style=""></span>min&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">NS&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Photosensitizing agent&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">MAL 16&#37;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">MAL 16&#37;&#44; MAL 8&#37;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">MAL 16&#37;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">MAL16&#37;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">MAL 16&#37;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">MAL 16&#37;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Amount of photosensitizer or layer thickness&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1<span class="elsevierStyleHsp" style=""></span>g&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1<span class="elsevierStyleHsp" style=""></span>g&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&#8220;Thick layer&#8221;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1-mm layer&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Layer of 0&#46;5&#8211;1 mm&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">NS&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Photosensitizer incubation&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">30<span class="elsevierStyleHsp" style=""></span>min on the daylight PDT side&#59; 3<span class="elsevierStyleHsp" style=""></span>h on the conventional PDT side&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Wait of 0&#8211;120<span class="elsevierStyleHsp" style=""></span>min before sun exposure&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&#8804;&#160;30<span class="elsevierStyleHsp" style=""></span>min&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&#8804;&#160;30<span class="elsevierStyleHsp" style=""></span>min&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">30<span class="elsevierStyleHsp" style=""></span>min&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&#8804;&#160;30<span class="elsevierStyleHsp" style=""></span>min&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Occlusion after photosensitizer application&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Yes&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">No&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">No&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">No&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">No&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">No&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Time of day for exposure&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">NS&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">11&#8211;18<span class="elsevierStyleHsp" style=""></span>h&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">8&#8211;18&#58;30<span class="elsevierStyleHsp" style=""></span>h&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">NS&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">11&#8211;16<span class="elsevierStyleHsp" style=""></span>h&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">9&#8211;18<span class="elsevierStyleHsp" style=""></span>h&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Exposure duration recommended&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2&#46;5<span class="elsevierStyleHsp" style=""></span>h&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Rest of the day&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&#46;5<span class="elsevierStyleHsp" style=""></span>h vs 2&#46;5<span class="elsevierStyleHsp" style=""></span>h&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&#46;5<span class="elsevierStyleHsp" style=""></span>h vs 2&#46;5<span class="elsevierStyleHsp" style=""></span>h&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">90<span class="elsevierStyleHsp" style=""></span>min on a sunny day&#59; 120<span class="elsevierStyleHsp" style=""></span>min on a partly cloudy or cloudy day&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2<span class="elsevierStyleHsp" style=""></span>h&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Light dose&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Effective total exposure dose&#44; 34&#46;2<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span> &#40;range&#44; 11&#46;7&#8211;65&#46;9<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span>&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Mean effective dose&#44; 30&#46;1<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span> &#40;range&#44; 1&#46;2&#8211;69&#46;8<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span>&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Mean effective dose&#44; 1&#46;5<span class="elsevierStyleHsp" style=""></span>h&#44; 8&#46;6<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span>&#59; in 2&#46;5<span class="elsevierStyleHsp" style=""></span>h&#44;<span class="elsevierStyleHsp" style=""></span>10&#46;2<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">100 patients received &#62;<span class="elsevierStyleHsp" style=""></span>3&#46;5<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span>&#59; 37 patients received &#60;<span class="elsevierStyleHsp" style=""></span>3&#46;5<span class="elsevierStyleHsp" style=""></span>J&#47;cm<span class="elsevierStyleSup">2</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">NS&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">NS&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Weather conditions&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Sunny or partly cloudy&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3 patients exposed on cloudy or rainy days&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Sunny or partly cloudy &#40;83&#37;&#41;&#59; rainy or cloudy &#40;17&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Sunny or partly cloudy&#59; rainy or cloudy&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&#62;<span class="elsevierStyleHsp" style=""></span>12<span class="elsevierStyleHsp" style=""></span>&#176;C&#44; on days without rain&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Sunny&#47;partly cloudy&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Results at 3 mo <a class="elsevierStyleCrossRef" href="#tblfn0015"><span class="elsevierStyleSup">c</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">79&#37; reduction of AK in the treated area&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">76&#46;9&#37; reduction in number of AKs &#40;MAL 16&#37;&#41;&#59; 79&#46;5&#37; &#40;MAL 8&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Mean response rates&#58; after 1&#46;5<span class="elsevierStyleHsp" style=""></span>h&#44; 77&#46;2&#37;&#59; after 2&#46;5<span class="elsevierStyleHsp" style=""></span>h&#44; 74&#46;6&#37;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Mean response rates&#58; 75&#46;9&#37; in AK I&#59;61&#46;2&#37; in AK<span class="elsevierStyleHsp" style=""></span>II&#59;49&#46;1&#37; in AK<span class="elsevierStyleHsp" style=""></span>III&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Mean response rate&#44; 77&#37; &#40;range&#44; 0&#37;&#8211;100&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">82&#37; reduction in AKs&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Pain &#40;scale 0&#8211;10&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Mean maximum pain&#44; 2 &#40;1&#46;9&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">MAL 16&#37;&#44; 3&#46;7 &#40;2&#46;4&#41;&#59;MAL 8&#37;&#44; 3&#46;6 &#40;2&#46;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#8211;1&#44; 92&#37;&#59;4&#8211;7&#44; 7&#46;5&#37;&#59;8&#8211;10&#44; 0&#46;8&#37;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">NS&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 patient&#44; 5 out of 10&#59; others&#44; 0&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Mean&#44; 0&#46;8&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Other adverse effects&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Erythema&#44; crusting&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Erythema&#44; crusting&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Erythema&#44; 74&#37;&#59; pustules&#44; 29&#37;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">NS&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Erythema&#44; edema&#44; crusting&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">NS&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr></tbody></table>
                  """
              ]
              "imagenFichero" => array:1 [
                0 => "xTab549027.png"
              ]
            ]
          ]
          "notaPie" => array:3 [
            0 => array:3 [
              "identificador" => "tblfn0005"
              "etiqueta" => "a"
              "nota" => "<p class="elsevierStyleNotepara" id="npar0005">Unpublished study&#44; presented at the Thirteenth Conference of the European Society for Photodynamic Therapy in Dermatology &#40;Euro-PDT&#41; in Madrid&#44; May 31 to June 1&#44; 2013&#46;</p>"
            ]
            1 => array:3 [
              "identificador" => "tblfn0010"
              "etiqueta" => "b"
              "nota" => "<p class="elsevierStyleNotepara" id="npar0010">Age is shown as mean &#40;range&#41;&#46;</p>"
            ]
            2 => array:3 [
              "identificador" => "tblfn0015"
              "etiqueta" => "c"
              "nota" => "<p class="elsevierStyleNotepara" id="npar0015">Response rate refers to the number of lesions showing complete response divided by the number of lesions treated in each patient&#46;</p>"
            ]
          ]
        ]
        "descripcion" => array:1 [
          "en" => "<p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">Characteristics of the Principal Studies of Daylight-Mediated PDT Treatment of AK&#46;</p>"
        ]
      ]
      5 => array:7 [
        "identificador" => "tbl0010"
        "etiqueta" => "Table 2"
        "tipo" => "MULTIMEDIATABLA"
        "mostrarFloat" => true
        "mostrarDisplay" => false
        "tabla" => array:3 [
          "leyenda" => "<p id="spar0050" class="elsevierStyleSimplePara elsevierViewall">Abbreviations&#58; AK&#44; actinic keratosis&#59; MAL&#44; methyl aminolevulinate&#59; PDT&#44; photodynamic therapy&#59; SPF&#44; sun protection factor&#46;</p>"
          "tablatextoimagen" => array:1 [
            0 => array:2 [
              "tabla" => array:1 [
                0 => """
                  <table border="0" frame="\n
                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><tbody title="tbody"><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Candidates for therapy&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " colspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Patients with multiple AKs or field cancerization in sun-exposed areas&#46;</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Treatment period&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " colspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">In Spain&#44; all year long&#46;<a class="elsevierStyleCrossRef" href="#bib0265"><span class="elsevierStyleSup">53</span></a>In Nordic countries&#44; April to October&#46;<a class="elsevierStyleCrossRef" href="#bib0285"><span class="elsevierStyleSup">57</span></a></td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Weather conditions&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " colspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Avoid rainy<a class="elsevierStyleCrossRef" href="#bib0285"><span class="elsevierStyleSup">57</span></a> or very cloudy<a class="elsevierStyleCrossRef" href="#bib0315"><span class="elsevierStyleSup">63</span></a> days&#46;</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Procedure&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Inside the hospital&#58;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Apply a sunscreen &#40;SPF &#8805; 15 on exposed skin&#41;&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">15<span class="elsevierStyleHsp" style=""></span>min&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Scrape the lesions with a curette&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Apply a photosensitizer &#40;MAL&#41;&#44; without occlusion&#44; on the field to be treated&#46;<a class="elsevierStyleCrossRef" href="#tblfn0025"><span class="elsevierStyleSup">b</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Outside the hospital&#58;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Expose skin to natural light&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2<span class="elsevierStyleHsp" style=""></span>h&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Remove remaining photosensitizer&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Strict sun protection measures for 48<span class="elsevierStyleHsp" style=""></span>h&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">No&#46; of sessions&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " colspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">AK&#44; 1 session&#59; for other lesions&#44; variable no&#46; of sessions&#46;</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Follow-up&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " colspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Recommended&#58; Examine the skin or contact the patient by telephone 24&#8211;48<span class="elsevierStyleHsp" style=""></span>h after treatment to check status&#59; assess outcome 12&#160;wk after treatment&#46;</td></tr></tbody></table>
                  """
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              "identificador" => "tblfn0020"
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              "nota" => "<p class="elsevierStyleNotepara" id="npar0020">Adapted from Wiegell et al&#46;<a class="elsevierStyleCrossRef" href="#bib0285"><span class="elsevierStyleSup">57</span></a></p>"
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            1 => array:3 [
              "identificador" => "tblfn0025"
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              "nota" => "<p class="elsevierStyleNotepara" id="npar0025">The ideal thickness remains to be established&#46; The prescribing information recommends a layer 1<span class="elsevierStyleHsp" style=""></span>mm thick&#46; However Wulf and colleagues have reported using a thinner layer without loss of efficacy &#40;Dr&#46; H&#46; C&#46; Wulf&#44; personal communication at the thirteenth annual conference of the European Society for Photodynamic Therapy in Dermatology &#91;Euro-PDT&#93;&#44; in Madrid&#44; May 31 to June 1&#44; 2013&#41;&#46;</p>"
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          "en" => "<p id="spar0045" class="elsevierStyleSimplePara elsevierViewall">Protocol for Daylight-Mediated PDT&#46; <a class="elsevierStyleCrossRef" href="#tblfn0020"><span class="elsevierStyleSup">a</span></a></p>"
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                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">Latitudes&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
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                  \t\t\t\t  " colspan="12" align="center" valign="\n
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                  \t\t\t\t" style="border-bottom: 2px solid black">Effective Light Dose in 2<span class="elsevierStyleHsp" style=""></span>h of Exposure on a Sunny Day&#44; J&#47;cm<span class="elsevierStyleSup">2</span></td></tr><tr title="table-row"><td class="td" title="\n
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                  \t\t\t\t">Months</td></tr><tr title="table-row"><td class="td" title="\n
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                  \t\t\t\t" style="border-bottom: 2px solid black">&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t" style="border-bottom: 2px solid black">1&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t" style="border-bottom: 2px solid black">2&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
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                  \t\t\t\t" style="border-bottom: 2px solid black">3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" style="border-bottom: 2px solid black">4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t" style="border-bottom: 2px solid black">5&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
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                  \t\t\t\t" style="border-bottom: 2px solid black">6&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
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                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t" style="border-bottom: 2px solid black">7&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t" style="border-bottom: 2px solid black">8&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t" style="border-bottom: 2px solid black">9&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t" style="border-bottom: 2px solid black">10&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t" style="border-bottom: 2px solid black">11&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t" style="border-bottom: 2px solid black">12&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">50<span class="elsevierStyleHsp" style=""></span>N&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">13&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">40<span class="elsevierStyleHsp" style=""></span>N&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">51&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
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                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">48&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
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        "titulo" => "Acknowledgments"
        "texto" => "<p id="par0105" class="elsevierStylePara elsevierViewall">We express thanks to Dr Stephen Schumack &#40;St&#46; George Dermatology and Skin Cancer Centre&#59; Kogarah&#44; Australia&#41; for information about the Australian multicenter study on daylight-mediated PDT&#46;</p> <p id="par0110" class="elsevierStylePara elsevierViewall">Thanks to Dr Beni Grinblat for information on results of his group&#39;s study of daylight-mediated PDT in Sao Paulo&#44; Brazil&#46;</p> <p id="par0115" class="elsevierStylePara elsevierViewall">Thanks to Dr Ann Le Pillouer-Prost for sending information about the study of daylight-mediated PDT in Marseille&#44; France&#46;</p> <p id="par0120" class="elsevierStylePara elsevierViewall">Thanks to Dr Helger Stege &#40;Klinikum Lippe&#44; Detmold&#44; Germany&#41; for providing information about the AK-Derm device and a photograph of it&#46;</p> <p id="par0125" class="elsevierStylePara elsevierViewall">Thanks to Dr Peter Bjerring &#40;Hospital Molhom&#44; Vejle&#44; Denmark&#41; for his kind permission to use a photograph of the greenhouse used by his department&#46;</p>"
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