1. Dermatology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
2. Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania Luigi Vanvitelli, 80131 Naples, Italy
3. Dematology Unit, University of Campania L.Vanvitelli, Naples, Italy
4. Dermatology Department, University of Modena & Reggio Emilia, Modena, Italy