1. Section of Dermatology, Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
2. First Department of Dermatology, School of Medicine, Faculty of Health Sciences, Aristotle University, 54124 Thessaloniki, Greece
3. Second Department of Dermatology, School of Medicine, Faculty of Health Sciences, Aristotle University, 54124 Thessaloniki, Greece