1 Department of Dermatology, CEIMI, Hospital General Universitario Gregorio Marañón, Madrid, Spain. Electronic address: ofelia.baniandres@salud.madrid.org.
2 Department of Dermatology, Hospital Universitario de Gran Canaria Dr Negrín, Las Palmas de Gran Canaria, Spain.
3 Department of Dermatology, Hospital Universitario 12 de Octubre, Madrid, Spain.
4 Department of Dermatology, Hospital Universitari Germans Trias i Pujol, Badalona, Universidad Autónoma de Barcelona, Barcelona, Spain.
5 Department of Dermatology. Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria de La Princesa (IIS-IP), Madrid, Spain.
6 Department of Dermatology, Hospital Universitario Virgen de la Victoria, Málaga, Spain.
7 Department of Dermatology, Hospital Universitario y Politécnico La Fe; Instituto de Investigación Sanitaria La Fe (IIS La Fe), Valencia, Spain. Facultad de Medicina, Universidad de Valencia, Spain.
8 Department of Dermatology, Hospital Universitario Reina Sofía, Cordoba, Spain.
9 Department of Dermatology, CEIMI, Hospital General Universitario Gregorio Marañón, Madrid, Spain.
10 Department of Dermatology, Hospital Universitario Infanta Leonor, Madrid, Spain.
11 Department of Dermatology, Hospital Universitario Fundación Alcorcón, Madrid, Spain.
12 Department of Dermatology, Hospital General Universitario de Alicante-ISABIAL, Alicante, Spain.
13 Department of Dermatology, Hospital del Mar, Parc de Salut Mar, Barcelona, Spain.
14 Department of Dermatology, Hospital Clínic de Barcelona, UB, Barcelona Spain.
15 Department of Dermatology. Hospital Virgen del Rocío, Sevilla, Spain.
16 Research Unit. Fundación Piel Sana AEDV, Madrid, Spain.
17 Research Unit. Fundación Piel Sana AEDV, Madrid, Spain; Department of Dermatology, Complexo Hospitalario Universitario de Vigo, Vigo, Spain.