1. Department of Dermatology Hospital Universitario y Politécnico La Fe, Instituto de Investigación Sanitaria (IIS) La Fe Valencia Spain
2. Department of Dermatology Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria La Princesa (IIS‐IP) Madrid Spain
3. Department of Dermatology Hospital de la Santa Creu i Sant Pau Barcelona Spain
4. Department of Dermatology Hospital Universitario San Cecilio Granada Spain
5. Department of Dermatology Hospital del Mar‐Institut Mar d'Investigacions Barcelona Spain
6. Department of Dermatology Hospital General Universitario Castellón Spain
7. Department of Rheumatology Hospital del Mar Barcelona Spain
8. Department of Rheumatology Hospital de Can Misses Ibiza Spain
9. Department of Dermatology Hospital Clinic de Barcelona Barcelona Spain
10. Department of Dermatology Hospital de Igualada Barcelona Spain
11. Department of Dermatology Hospital General Universitario Dr. Balmis‐ISABIAL, Universidad Miguel Hernández Alicante Spain
12. Department of Dermatology Hospital Universitari de Bellvitge, Hospitalet de Llobregat Barcelona Spain
13. Department of Dermatology Hospital Universitari Germans Trias i Pujol, Badalona, Universidad Autónoma de Barcelona Barcelona Spain
14. Department of Dermatology Hospital Clínico Universitario Valencia Spain
15. Department of Dermatology Hospital Vall d'Hebron Barcelona Spain
16. Department of Dermatology Hospital Universitari Parc Taulí Sabadell, Barcelona Spain