1. Department of Dermatology Hospital Universitario de Gran Canaria Doctor Negrín, Universidad de Las Palmas de Gran Canaria Las Palmas de Gran Canaria Spain
2. Department of Dermatology Hospital Universitario Insular de Gran Canaria, Universidad de Las Palmas de Gran Canaria Las Palmas de Gran Canaria Spain
3. Department of Dermatology Hospital General Universitario José María Morales Meseguer Murcia Spain
4. Department of Dermatology Hospital del Mar, Instituto Municipal de Investigación Médica Barcelona Spain
5. Department of Dermatology Hospital Universitario de La Princesa Madrid Spain
6. Department of Dermatology Hospital General Universitario de Alicante Alicante Spain
7. Department of Dermatology Hospital Universitario Araba, Universidad del País Vasco Vitoria Spain
8. Department of Dermatology Hospital Universitario Infanta Sofía Madrid Spain
9. Department of Dermatology Hospital Universitario Rey Juan Carlos Móstoles Spain
10. Department of Dermatology Hospital Universitario Sagrat Cor Barcelona Spain
11. Department of Dermatology Hospital General Universitario de Valencia Valencia Spain
12. Department of Dermatology Hospital Universitario Arnau de Vilanova Valencia Spain
13. Department of Dermatology Hospital Universitario Germans Trias i Pujol Badalona Spain
14. Department of Dermatology Hospital Universitario de Fuenlabrada Madrid Spain
15. Department of Dermatology Complejo Hospitalario Universitario de Toledo Toledo Spain
16. Department of Dermatology Complejo Asistencial Universitario de León León Spain
17. Department of Dermatology Hospital de la Santa Creu i Sant Pau Barcelona Spain
18. Department of Dermatology Hospital Universitario 12 de Octubre Madrid Spain
19. Department of Dermatology Hospital Universitario La Fe Valencia Spain
20. Department of Dermatology Hospital Universitario de Guadalajara Guadalajara Spain
21. Department of Dermatology Complejo Hospitalario Universitario de Santiago, Universidad de Santiago de Compostela Santiago de Compostela Spain
22. Department of Dermatology Complejo Hospitalario de Navarra Pamplona Spain
23. Unidad de Investigación Fundación Piel Sana Madrid Spain