1. Department of Dermatology; University of Modena and Reggio Emilia; Modena Italy
2. Skin Cancer Unit; Arcispedale Santa Maria Nuova - IRCCS; Viale Risorgimento 80 42100 Reggio Emilia Italy
3. Department of Pathology; University of Modena and Reggio Emilia; Modena Italy
4. Melanoma Institute Australia; The University of Sydney and Sydney Melanoma Diagnostic Centre; Royal Prince Alfred Hospital; Sydney NSW Australia