Letter to the Editor
Equivalence of Measurement: On Life Before Multigroup Confirmatory Factor Analysis
Equivalencia en la medida: la vida antes del análisis factorial confirmatorio multigrupo
Read
3320
Timeswas read the article
1523
Total PDF
1797
Total HTML
Share statistics
array:25 [ "pii" => "S1578219021000871" "issn" => "15782190" "doi" => "10.1016/j.adengl.2020.06.005" "estado" => "S300" "fechaPublicacion" => "2021-05-01" "aid" => "2540" "copyright" => "AEDV" "copyrightAnyo" => "2020" "documento" => "simple-article" "crossmark" => 1 "licencia" => "http://creativecommons.org/licenses/by-nc-nd/4.0/" "subdocumento" => "cor" "cita" => "Actas Dermosifiliogr. 2021;112:484-5" "abierto" => array:3 [ "ES" => true "ES2" => true "LATM" => true ] "gratuito" => true "lecturas" => array:1 [ "total" => 0 ] "Traduccion" => array:1 [ "es" => array:20 [ "pii" => "S0001731020305056" "issn" => "00017310" "doi" => "10.1016/j.ad.2020.06.005" "estado" => "S300" "fechaPublicacion" => "2021-05-01" "aid" => "2540" "copyright" => "AEDV" "documento" => "simple-article" "crossmark" => 1 "licencia" => "http://creativecommons.org/licenses/by-nc-nd/4.0/" "subdocumento" => "cor" "cita" => "Actas Dermosifiliogr. 2021;112:484-5" "abierto" => array:3 [ "ES" => true "ES2" => true "LATM" => true ] "gratuito" => true "lecturas" => array:1 [ "total" => 0 ] "es" => array:10 [ "idiomaDefecto" => true "cabecera" => "<span class="elsevierStyleTextfn">Carta al Director</span>" "titulo" => "Equivalencia en la medida: la vida antes del análisis factorial confirmatorio multigrupo" "tienePdf" => "es" "tieneTextoCompleto" => "es" "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "484" "paginaFinal" => "485" ] ] "titulosAlternativos" => array:1 [ "en" => array:1 [ "titulo" => "Equivalence of Measurement: On Life Before Multigroup Confirmatory Factor Analysis" ] ] "contieneTextoCompleto" => array:1 [ "es" => true ] "contienePdf" => array:1 [ "es" => true ] "autores" => array:1 [ 0 => array:2 [ "autoresLista" => "A.R. Sánchez-Villena, V. de La Fuente-Figuerola, J. Ventura-León" "autores" => array:3 [ 0 => array:2 [ "nombre" => "A.R." "apellidos" => "Sánchez-Villena" ] 1 => array:2 [ "nombre" => "V." "apellidos" => "de La Fuente-Figuerola" ] 2 => array:2 [ "nombre" => "J." "apellidos" => "Ventura-León" ] ] ] ] ] "idiomaDefecto" => "es" "Traduccion" => array:1 [ "en" => array:9 [ "pii" => "S1578219021000871" "doi" => "10.1016/j.adengl.2020.06.005" "estado" => "S300" "subdocumento" => "" "abierto" => array:3 [ "ES" => true "ES2" => true "LATM" => true ] "gratuito" => true "lecturas" => array:1 [ "total" => 0 ] "idiomaDefecto" => "en" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S1578219021000871?idApp=UINPBA000044" ] ] "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S0001731020305056?idApp=UINPBA000044" "url" => "/00017310/0000011200000005/v1_202105061359/S0001731020305056/v1_202105061359/es/main.assets" ] ] "itemSiguiente" => array:20 [ "pii" => "S1578219021000457" "issn" => "15782190" "doi" => "10.1016/j.adengl.2021.01.026" "estado" => "S300" "fechaPublicacion" => "2021-05-01" "aid" => "2522" "copyright" => "AEDV" "documento" => "simple-article" "crossmark" => 1 "licencia" => "http://creativecommons.org/licenses/by-nc-nd/4.0/" "subdocumento" => "cor" "cita" => "Actas Dermosifiliogr. 2021;112:485-6" "abierto" => array:3 [ "ES" => true "ES2" => true "LATM" => true ] "gratuito" => true "lecturas" => array:1 [ "total" => 0 ] "en" => array:11 [ "idiomaDefecto" => true "cabecera" => "<span class="elsevierStyleTextfn">Letter to the Editor</span>" "titulo" => "José Eugenio de Olavide Landazábal: Photographs and Lithographs" "tienePdf" => "en" "tieneTextoCompleto" => "en" "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "485" "paginaFinal" => "486" ] ] "titulosAlternativos" => array:1 [ "es" => array:1 [ "titulo" => "José Eugenio de Olavide Landazábal: fotografías y litografías" ] ] "contieneTextoCompleto" => array:1 [ "en" => true ] "contienePdf" => array:1 [ "en" => true ] "resumenGrafico" => array:2 [ "original" => 0 "multimedia" => array:8 [ "identificador" => "fig0005" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 1756 "Ancho" => 1074 "Tamanyo" => 120071 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0005" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Photograph of José Eugenio de Olavide Landazábal. Reproduced with the permission of Spain’s national library (Biblioteca Nacional de España).</p>" ] ] ] "autores" => array:1 [ 0 => array:2 [ "autoresLista" => "E. Fonseca Capdevila" "autores" => array:1 [ 0 => array:2 [ "nombre" => "E." "apellidos" => "Fonseca Capdevila" ] ] ] ] ] "idiomaDefecto" => "en" "Traduccion" => array:1 [ "es" => array:9 [ "pii" => "S0001731020304658" "doi" => "10.1016/j.ad.2019.08.003" "estado" => "S300" "subdocumento" => "" "abierto" => array:3 [ "ES" => true "ES2" => true "LATM" => true ] "gratuito" => true "lecturas" => array:1 [ "total" => 0 ] "idiomaDefecto" => "es" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S0001731020304658?idApp=UINPBA000044" ] ] "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S1578219021000457?idApp=UINPBA000044" "url" => "/15782190/0000011200000005/v1_202105020833/S1578219021000457/v1_202105020833/en/main.assets" ] "itemAnterior" => array:19 [ "pii" => "S1578219021000676" "issn" => "15782190" "doi" => "10.1016/j.adengl.2021.02.001" "estado" => "S300" "fechaPublicacion" => "2021-05-01" "aid" => "2570" "documento" => "simple-article" "crossmark" => 1 "licencia" => "http://creativecommons.org/licenses/by-nc-nd/4.0/" "subdocumento" => "crp" "cita" => "Actas Dermosifiliogr. 2021;112:481-3" "abierto" => array:3 [ "ES" => true "ES2" => true "LATM" => true ] "gratuito" => true "lecturas" => array:1 [ "total" => 0 ] "en" => array:11 [ "idiomaDefecto" => true "cabecera" => "<span class="elsevierStyleTextfn">Case and Research Letters</span>" "titulo" => "An Efficacy of Cantharidin Treatment in Facial Molluscum Contagiosum in Younger Children: A Prospective Interventional Study in 67 Children" "tienePdf" => "en" "tieneTextoCompleto" => "en" "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "481" "paginaFinal" => "483" ] ] "titulosAlternativos" => array:1 [ "es" => array:1 [ "titulo" => "Eficacia del tratamiento con cantaridina del molusco contagioso facial en niños pequeños: un estudio prospectivo intervencionista en 67 niños" ] ] "contieneTextoCompleto" => array:1 [ "en" => true ] "contienePdf" => array:1 [ "en" => true ] "resumenGrafico" => array:2 [ "original" => 0 "multimedia" => array:8 [ "identificador" => "fig0005" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 868 "Ancho" => 750 "Tamanyo" => 62220 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0005" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Molluscum lesion at the 1<span class="elsevierStyleSup">st</span> visit.</p>" ] ] ] "autores" => array:1 [ 0 => array:2 [ "autoresLista" => "V. Zawar, M. Pawar, M. Singh" "autores" => array:3 [ 0 => array:2 [ "nombre" => "V." "apellidos" => "Zawar" ] 1 => array:2 [ "nombre" => "M." "apellidos" => "Pawar" ] 2 => array:2 [ "nombre" => "M." "apellidos" => "Singh" ] ] ] ] ] "idiomaDefecto" => "en" "Traduccion" => array:1 [ "es" => array:9 [ "pii" => "S0001731020305433" "doi" => "10.1016/j.ad.2019.11.013" "estado" => "S300" "subdocumento" => "" "abierto" => array:3 [ "ES" => true "ES2" => true "LATM" => true ] "gratuito" => true "lecturas" => array:1 [ "total" => 0 ] "idiomaDefecto" => "es" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S0001731020305433?idApp=UINPBA000044" ] ] "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S1578219021000676?idApp=UINPBA000044" "url" => "/15782190/0000011200000005/v1_202105020833/S1578219021000676/v1_202105020833/en/main.assets" ] "en" => array:13 [ "idiomaDefecto" => true "cabecera" => "<span class="elsevierStyleTextfn">Letter to the Editor</span>" "titulo" => "Equivalence of Measurement: On Life Before Multigroup Confirmatory Factor Analysis" "tieneTextoCompleto" => true "saludo" => "To the Editor," "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "484" "paginaFinal" => "485" ] ] "autores" => array:1 [ 0 => array:4 [ "autoresLista" => "A.R. Sánchez-Villena, V. de La Fuente-Figuerola, J. Ventura-León" "autores" => array:3 [ 0 => array:4 [ "nombre" => "A.R." "apellidos" => "Sánchez-Villena" "email" => array:2 [ 0 => "andysavi92@gmail.com" 1 => "andy.sanchez@upn.pe" ] "referencia" => array:2 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "aff0005" ] 1 => array:2 [ "etiqueta" => "*" "identificador" => "cor0005" ] ] ] 1 => array:3 [ "nombre" => "V." "apellidos" => "de La Fuente-Figuerola" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">b</span>" "identificador" => "aff0010" ] ] ] 2 => array:3 [ "nombre" => "J." "apellidos" => "Ventura-León" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "aff0005" ] ] ] ] "afiliaciones" => array:2 [ 0 => array:3 [ "entidad" => "Universidad Privada del Norte, Cajamarca, Peru" "etiqueta" => "a" "identificador" => "aff0005" ] 1 => array:3 [ "entidad" => "Forum, Centro de Estudios Familiares, Cajamarca, Peru" "etiqueta" => "b" "identificador" => "aff0010" ] ] "correspondencia" => array:1 [ 0 => array:3 [ "identificador" => "cor0005" "etiqueta" => "⁎" "correspondencia" => "Corresponding author." ] ] ] ] "titulosAlternativos" => array:1 [ "es" => array:1 [ "titulo" => "Equivalencia en la medida: la vida antes del análisis factorial confirmatorio multigrupo" ] ] "textoCompleto" => "<span class="elsevierStyleSections"><p id="par0005" class="elsevierStylePara elsevierViewall">We read with great interest a recent article about the translation of the Mastocytosis Quality of Life Questionnaire.<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> The main aim was transcultural adaptation of this instrument to achieve equivalence with the German version. The article, in addition to being relevant, has prompted us to discuss some aspects of the concept of equivalence to raise awareness of the complexity and different levels of adaptation to be considered before undertaking the statistical analysis corresponding to different psychometric studies.</p><p id="par0010" class="elsevierStylePara elsevierViewall">The equivalence in questionnaires, as well as in any other psychometric test, is essential for measurement of outcomes in health sciences, as this is closely tied to their validity,<a class="elsevierStyleCrossRef" href="#bib0010"><span class="elsevierStyleSup">2</span></a> particularly in transcultural research. However, many studies only report equivalence through multigroup confirmatory factor analysis (MCFA), a statistical technique that consists of progressively restricting parameters to test whether the internal structure of an instrument is equivalent between demographically or culturally diverse groups.<a class="elsevierStyleCrossRef" href="#bib0015"><span class="elsevierStyleSup">3</span></a> But this procedure, in itself, is insufficient to guarantee this property. There are different levels or sources of equivalence<a class="elsevierStyleCrossRefs" href="#bib0020"><span class="elsevierStyleSup">4,5</span></a>: conceptual equivalence, item equivalence, semantic equivalence, operational equivalence, outcome equivalence, and functional equivalence; only the latter of these corresponds to MCFA.</p><p id="par0015" class="elsevierStylePara elsevierViewall">Conceptual equivalence refers to the importance, representation, and meaning attributed to a certain construct in both groups or cultures.<a class="elsevierStyleCrossRef" href="#bib0020"><span class="elsevierStyleSup">4</span></a> This first level of equivalence requires exploring and analyzing the way in which each group conceptualizes, defines, or evaluates the variable of interest. Thus, translation and statistical analysis of the test is not enough; it is necessary to undertake theoretical and qualitative investigations beforehand,<a class="elsevierStyleCrossRef" href="#bib0025"><span class="elsevierStyleSup">5</span></a> and search for instruments already available to compare meaning.</p><p id="par0020" class="elsevierStylePara elsevierViewall">The equivalence of items consists of the importance and acceptability of each of the items in different groups.<a class="elsevierStyleCrossRef" href="#bib0020"><span class="elsevierStyleSup">4</span></a> At this level, the aim is to ensure that the items are relevant and not offensive,<a class="elsevierStyleCrossRef" href="#bib0025"><span class="elsevierStyleSup">5</span></a> a particularly delicate topic in transcultural studies, as some items may be taboo. Thus, it is necessary to guarantee that the items are relevant, clear, and representative for measuring the construct, as well as retaining coherence with the conceptual framework. This level of equivalence is linked to content validity and input from anthropologists, sociologists, and members of the target populations may be needed.<a class="elsevierStyleCrossRef" href="#bib0025"><span class="elsevierStyleSup">5</span></a></p><p id="par0025" class="elsevierStylePara elsevierViewall">Semantic equivalence refers to the fact that the items should mean the same in both groups or cultures.<a class="elsevierStyleCrossRefs" href="#bib0020"><span class="elsevierStyleSup">4,5</span></a> It is therefore expected that translations and adaptations fit the original meaning of the items. To ensure this, it is important that drafting takes into account dialect, use of technical language, formality, and connotation of a commonly used phrase and even fashionable words in people of the same sex or age.<a class="elsevierStyleCrossRef" href="#bib0020"><span class="elsevierStyleSup">4</span></a></p><p id="par0030" class="elsevierStylePara elsevierViewall">Operational equivalence implies that a test can be administered, scored, and interpreted in the same conditions in the target groups in order to provide a fair assessment.<a class="elsevierStyleCrossRef" href="#bib0015"><span class="elsevierStyleSup">3</span></a> This type of equivalence could refer to equity and, therefore, impartiality.<a class="elsevierStyleCrossRef" href="#bib0030"><span class="elsevierStyleSup">6</span></a></p><p id="par0035" class="elsevierStylePara elsevierViewall">Outcome equivalence means that the psychometric properties of different versions of a test should be the same.<a class="elsevierStyleCrossRefs" href="#bib0020"><span class="elsevierStyleSup">4,5</span></a> This can be evidenced through statistical methods such as MCFA, in order to confirm that the internal structure of a test is identical in different groups or cultures.</p><p id="par0040" class="elsevierStylePara elsevierViewall">Finally, we now come to functional equivalence, which is defined as the combination of the 5 previous types of equivalence. This is achieved when a test meets its goal, regardless of the target group in which it is administered.</p><p id="par0045" class="elsevierStylePara elsevierViewall">In conclusion, it is important to comply with each of these types of equivalence when developing psychometric tools before performing MCFA, particularly in the case of transcultural studies. Similarly, the importance of qualitative research in the adaptation and validation of tests should be highlighted, as well as semantic analysis of the constructs, because few articles address whether concepts have the same meaning in different cultures or even whether 2 concepts in the same language are interchangeable.</p></span>" "pdfFichero" => "main.pdf" "tienePdf" => true "NotaPie" => array:1 [ 0 => array:2 [ "etiqueta" => "☆" "nota" => "<p class="elsevierStyleNotepara" id="npar0005">Please cite this article as: Sánchez-Villena AR, de La Fuente-Figuerola V, Ventura-León J. Equivalencia en la medida: la vida antes del análisis factorial confirmatorio multigrupo. Actas Dermosifiliogr. 2021;112:484–485.</p>" ] ] "bibliografia" => array:2 [ "titulo" => "References" "seccion" => array:1 [ 0 => array:2 [ "identificador" => "bibs0005" "bibliografiaReferencia" => array:6 [ 0 => array:3 [ "identificador" => "bib0005" "etiqueta" => "1" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Adaptación transcultural del cuestionario Mastocytosis Quality of Life questionnaire (MC-QoL) del alemán al castellano" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:6 [ 0 => "M. Bertolín-Colilla" 1 => "O. Garin-Boronat" 2 => "F. Siebenhaar" 3 => "M. Maurer" 4 => "R.M. Pujol" 5 => "A.M. Giménez-Arnau" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1016/j.ad.2019.11.003" "Revista" => array:6 [ "tituloSerie" => "Actas Dermosifiliogr" "fecha" => "2020" "volumen" => "111" "paginaInicial" => "243" "paginaFinal" => "248" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/31987469" "web" => "Medline" ] ] ] ] ] ] ] ] 1 => array:3 [ "identificador" => "bib0010" "etiqueta" => "2" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Fairness in Test Design and Development" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:1 [ 0 => "M.J. Zieky" ] ] ] ] ] "host" => array:1 [ 0 => array:1 [ "LibroEditado" => array:5 [ "editores" => "N.J.Dorans, L.Cook" "titulo" => "Fairness in Educational Assessment and Measurement" "paginaInicial" => "9" "paginaFinal" => "32" "serieFecha" => "2016" ] ] ] ] ] ] 2 => array:3 [ "identificador" => "bib0015" "etiqueta" => "3" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Measurement equivalence: A non-technical primer on categorical multi-group confirmatory factor analysis in school psychology" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:4 [ 0 => "L.L. Pendergast" 1 => "N. von der Embse" 2 => "S.P. Kilgus" 3 => "K.R. Eklund" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1016/j.jsp.2016.11.002" "Revista" => array:6 [ "tituloSerie" => "J Sch Psychol" "fecha" => "2017" "volumen" => "60" "paginaInicial" => "65" "paginaFinal" => "82" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/28164800" "web" => "Medline" ] ] ] ] ] ] ] ] 3 => array:3 [ "identificador" => "bib0020" "etiqueta" => "4" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "A review of guidelines for cross-cultural adaptation of questionnaires could not bring out a consensus" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:3 [ 0 => "J. Epstein" 1 => "R.M. Santo" 2 => "F. Guillemin" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1016/j.jclinepi.2014.11.021" "Revista" => array:6 [ "tituloSerie" => "J Clin Epidemiol" "fecha" => "2015" "volumen" => "68" "paginaInicial" => "435" "paginaFinal" => "441" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/25698408" "web" => "Medline" ] ] ] ] ] ] ] ] 4 => array:3 [ "identificador" => "bib0025" "etiqueta" => "5" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "A model of equivalence in the cultural adaptation of HRQoL instruments: the universalist approach" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:3 [ 0 => "M. Herdman" 1 => "J. Fox-Rushby" 2 => "X. Badia" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1023/a:1024985930536" "Revista" => array:6 [ "tituloSerie" => "Qual life Res" "fecha" => "1998" "volumen" => "7" "paginaInicial" => "323" "paginaFinal" => "335" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/9610216" "web" => "Medline" ] ] ] ] ] ] ] ] 5 => array:3 [ "identificador" => "bib0030" "etiqueta" => "6" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Uso equitativo de tests en ciencias de la salud" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:6 [ 0 => "A. Espelt" 1 => "C. Viladrich" 2 => "E. Doval" 3 => "J. Aliaga" 4 => "R. García-Rueda" 5 => "S. Tárrega" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1016/j.gaceta.2014.05.001" "Revista" => array:6 [ "tituloSerie" => "Gac Sanit" "fecha" => "2014" "volumen" => "28" "paginaInicial" => "408" "paginaFinal" => "410" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/24928357" "web" => "Medline" ] ] ] ] ] ] ] ] ] ] ] ] ] "idiomaDefecto" => "en" "url" => "/15782190/0000011200000005/v1_202105020833/S1578219021000871/v1_202105020833/en/main.assets" "Apartado" => array:4 [ "identificador" => "6208" "tipo" => "SECCION" "en" => array:2 [ "titulo" => "Letters to the Editor" "idiomaDefecto" => true ] "idiomaDefecto" => "en" ] "PDF" => "https://static.elsevier.es/multimedia/15782190/0000011200000005/v1_202105020833/S1578219021000871/v1_202105020833/en/main.pdf?idApp=UINPBA000044&text.app=https://actasdermo.org/" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S1578219021000871?idApp=UINPBA000044" ]
| Year/Month | Html | Total | |
|---|---|---|---|
| 2024 November | 11 | 8 | 19 |
| 2024 October | 57 | 60 | 117 |
| 2024 September | 56 | 20 | 76 |
| 2024 August | 90 | 50 | 140 |
| 2024 July | 61 | 30 | 91 |
| 2024 June | 82 | 36 | 118 |
| 2024 May | 63 | 29 | 92 |
| 2024 April | 55 | 23 | 78 |
| 2024 March | 47 | 34 | 81 |
| 2024 February | 48 | 32 | 80 |
| 2024 January | 37 | 33 | 70 |
| 2023 December | 28 | 22 | 50 |
| 2023 November | 63 | 32 | 95 |
| 2023 October | 46 | 34 | 80 |
| 2023 September | 33 | 27 | 60 |
| 2023 August | 29 | 14 | 43 |
| 2023 July | 33 | 32 | 65 |
| 2023 June | 41 | 22 | 63 |
| 2023 May | 28 | 21 | 49 |
| 2023 April | 33 | 28 | 61 |
| 2023 March | 44 | 24 | 68 |
| 2023 February | 23 | 15 | 38 |
| 2023 January | 36 | 27 | 63 |
| 2022 December | 34 | 37 | 71 |
| 2022 November | 25 | 36 | 61 |
| 2022 October | 26 | 23 | 49 |
| 2022 September | 24 | 43 | 67 |
| 2022 August | 27 | 37 | 64 |
| 2022 July | 28 | 34 | 62 |
| 2022 June | 24 | 23 | 47 |
| 2022 May | 37 | 32 | 69 |
| 2022 April | 38 | 34 | 72 |
| 2022 March | 45 | 48 | 93 |
| 2022 February | 38 | 28 | 66 |
| 2022 January | 33 | 41 | 74 |
| 2021 December | 26 | 39 | 65 |
| 2021 November | 32 | 39 | 71 |
| 2021 October | 35 | 64 | 99 |
| 2021 September | 24 | 43 | 67 |
| 2021 August | 20 | 31 | 51 |
| 2021 July | 22 | 24 | 46 |
| 2021 June | 30 | 29 | 59 |
| 2021 May | 48 | 42 | 90 |
| 2021 April | 75 | 79 | 154 |
| 2021 March | 60 | 43 | 103 |
| 2021 February | 2 | 21 | 23 |
Show all
