[1] Univ Barcelona, Hosp Clin Barcelona, Dept Dermatol, Barcelona, Spain
[2] Complejo Asistencial Univ Salamanca, Dept Dermatol, Salamanca, Spain
[3] Hosp Univ Vall Dhebron, Dept Dermatol, Barcelona, Spain
[4] Hosp Mar, Dept Dermatol, Barcelona, Spain
[5] Inst Valenciano Oncologia, Dept Dermatol, Valencia, Spain
[6] Univ Autonoma Barcelona, Hosp Univ Germans Trias i Pujol, Dept Dermatol, Badalona, Spain
[7] Hosp Univ Ramon & Cajal, Dept Dermatol, Madrid, Spain
[8] Hosp Univ & Politecn La Fe, Dept Dermatol, Valencia, Spain
[9] Clin Univ Navarra, Dept Dermatol, Madrid, Spain
[10] Hosp Univ Puerta Hierro, Dept Dermatol, Majadahonda, Spain
[11] Hosp Santa Creu i St Pau, Dept Dermatol, Barcelona, Spain
[12] Hosp Univ Mutua Terrassa, Dept Dermatol, Terrassa, Spain
[13] Consorci Corporacio Sanitaia Parc Tauli, Dept Dermatol, Sabadell, Spain
[14] Hosp Gen Granollers, Dept Dermatol, Granollers, Spain
[15] Hosp Univ Son Espases, Dept Dermatol, Palma De Mallorca, Spain
[16] Hosp Univ Sagrat Cor, Dept Dermatol, Barcelona, Spain
[17] Hosp Arnau Vilanova, Dept Dermatol, Lleida, Spain
[18] Univ Barcelona, Hosp Clin Barcelona, Dept Dermatol, Carrer Villarroel 170, Barcelona 08036, Spain