1. Dermatology and Skin Cancer Unit; Arcispedale S. Maria Nuova, Institute for Research and Health Care; Reggio Emilia Italy
2. Pathology Unit; Arcispedale S. Maria Nuova, Institute for Research and Health Care; Reggio Emilia Italy
3. Dermatology Unit; University of Modena and Reggio Emilia; Modena Italy
4. Dermatology Unit; University of Campania “Luigi Vanvitelli”; Naples Italy