1. First Department of Dermatology Aristotle University Thessaloniki Greece
2. Skin Cancer Unit Arcispedale Santa Maria Nuova IRCCS Reggio Emilia Italy
3. City of Health and Science University Turin Italy
4. Department of Anaesthesiology, Surgery and Emergency Medicine Second University of Naples Naples Italy
5. Department of Dermatology and Venereology Nonmelanoma Skin Cancer Unit Medical University of Graz Austria
6. Dermatology Unit Second University of Naples Naples Italy