1. Clinical, Allergological, and Venereological Dermatology Section, Department of Medical and Surgical Specialities and Public Health; University of Perugia; 06132 Perugia Italy
2. San Gallicano Dermatological Institute, IRCCS; 00144 Rome Italy
3. Dermatology Unit, Department of Biomedical Sciences and Human Oncology; University of Bari; 70124 Bari Italy
4. Department of Biomedical Sciences for Health; University of Milan and Galeazzi Hospital; 20161 Milan Italy
5. Allergological and Occupational Dermatology Unit, Department of Surgery and Translational Medicine; Hospital of Florence, University of Florence; 50144 Florence Italy
6. Dermatology and Venereology Section, Department of Medicine; University of Verona; 37126 Verona Italy
7. Dermatology Section, Department of Medical Sciences; University of Ferrara; 44124 Ferrara Italy