1. Skin Cancer Unit, Arcispedale Santa Maria Nuova IRCCS, Reggio Emilia, Italy
2. First Department of Dermatology, Aristotle University, Thessaloniki, Greece
3. Dermatology Unit, Second University of Naples, Naples, Italy
4. Surgery Unit, Arcispedale Santa Maria Nuova IRCCS, Reggio Emilia, Italy
5. Radiotherapy Unit, Arcispedale Santa Maria Nuova IRCCS, Reggio Emilia, Italy
6. Department of Dermatology, Medical University of Graz, Graz, Austria