1. Department of Dermatology; University of Rome Tor Vergata; Rome Italy
2. Dermatology and Skin Cancer Unit; Arcispedale S. Maria Nuova; IRCCS; Reggio Emilia Italy
3. Anatomic Pathology Unit; Department of Oncology; Gaetano Rummo Hospital; Benevento Italy
4. Dermatology Unit; Gaetano Rummo Hospital; Benevento Italy
5. Department of Dermatology; University Hospital of St-Etienne; Saint-Etienne France
6. Dermatology Unit; Second University of Naples; Naples Italy