1 Department of Dermatology, University of Modena and Reggio Emilia, Modena, Italy.
2 Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Skin Cancer Center, Reggio Emilia, Italy.
3 Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, Modena, Italy.
4 Department of Surgery, Medicine, Dental Medicine and Morphological Sciences, University of Modena and Reggio Emilia, Modena, Italy.
5 Department of Dermatology, Department of Mental and Physical Health and Preventive Medicine, University of Campania Luigi Vanvitelli Naples, Naples, Italy.
6 Dermatology Unit, IRCCS Foundation Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
7 Department of Dermatology, University Federico II, Naples, Italy.
8 Medicine Faculty Department of Dermatology, Ankara University, Ankara, Turkey.
9 Prevenzione Tumori Cutanei, Oncology Department, Città' Della Salute e della Scienza di Turin, Turin, Italy.
10 Dermatology, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy.
11 Department of Dermatology and Venereology at the University of Gothenburg, Gothenburg, Sweden.
12 Dermatology Department, Hospital de la Santa Creu i Sant Pau, IIB SANT PAU, Universitat Autònoma de Barcelona, Barcelona, Spain.
13 Department of Dermatology and Venereology at the University of La Sapienza, Rome, Italy.
14 First Department of Dermatology, Aristotle University, Thessaloniki, Greece.