1. Department of Dermatology University Hospital of Pontevedra Pontevedra Spain
2. Department of Dermatology and Venereology La Paz University Hospital Madrid Spain
3. Department of Dermatology University Hospital of Virgen de la Victoria Málaga Spain
4. Department of Dermatology Complejo Asistencial Universitario de Salamanca Salamanca Spain
5. Pathology Department Hospital Universitario La Paz Madrid Spain