1. Department of Dermatology Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona Barcelona Spain
2. Department of Dermatology Derma Associats, Centro Médico Teknon Barcelona Spain
3. Department of Pathology Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona Barcelona Spain
4. Department of Reconstructive and Plastic Surgery Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona Barcelona Spain