1. First Department of Dermatology; Aristotle University of Thessaloniki; Thessaloniki Greece
2. Department of Dermatology; Spedali Civili Brescia; Brescia Italy
3. Skin Cancer Unit; Arcispedale Santa Maria Nuova; IRCCS; Reggio Emilia Italy
4. Department of Pathology 1-2; Spedali Civili Brescia; Brescia Italy