1. Department of Medical Sciences, Dermatologic Clinic University of Turin Torino Italy
2. Skin Cancer Unit Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST), Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Meldola Italy
3. Medicine and Surgery Department University of Parma Parma Italy