1. Unit of Dermatology, Department of Medical and Oncology Area University of Pisa Pisa Italy
2. Melanoma and Skin Cancer Unit AVNO (Area Vasta Nord Ovest) Tuscany and Unit of Dermatology Carrara Hospital Carrara Italy
3. Unit of Dermatology, Department of Medical and Surgical Sciences University of Foggia Foggia Italy
4. Section of Dermatology, DISSAL, IRCCS Ospedale Policlinico San Martino University of Genoa Genoa Italy