1. Skin Cancer Unit; Arcispedale Santa Maria Nuova IRCCS; Reggio Emilia
2. State Clinic of Dermatology; Hospital of Skin and Venereal Diseases; Thessaloniki Greece
3. Anatomic Pathology Unit; Department of Oncology; Gaetano Rummo General Hospital; Benevento Italy
4. Pathology Unit; Arcispedale Santa Maria Nuova IRCCS; Reggio Emilia
5. Clinical Genetics Unit; Ostetric and pediatric Department; Arcispedale Santa Maria Nuova IRCCS; Reggio Emilia
6. Department of Dermatology; Medical University of Graz; Graz Austria