1. Dermatology Department; Hospital General Universitario Jose Mª Morales Meseguer; 30008 Murcia Spain
2. Dermatology Department; Hospital Universitario de Guadalajara; 19002 Guadalajara Spain
3. Unidad de Investigación of the Fundación Piel Sana AEDV of the Spanish Academy of Dermatology; 28008 Madrid Spain
4. Dermatology Department; Hospital del Mar; 08003 Barcelona Spain
5. Dermatology Department; Hospital Universitario de Araba; 01009 Vitoria-Gasteiz Spain
6. Dermatology Deparment; Hospital Gil-Casares; 15706 Santiago de Compostela Spain
7. Dermatology Deparment; Hospital Sant Pau; 08025 Barcelona Spain
8. Dermatology Deparment; Hospital Universitario de Fuenlabrada; 28942 Madrid Spain
9. Dermatology Deparment; Complejo Hospitalario Virgen del Valle; 45071 Toledo Spain
10. Dermatology Department; Hospital General de Alicante; 03010 Alicante Spain