1. Department of Medical Sciences, Section of Dermatology; University of Ferrara, I-44121; Ferrara Italy
2. Section of Dermatology - DISSAL; University of Genoa, I-16132; Genoa Italy
3. Department of Medicine, Section of Dermatology and Venereology; University of Verone, I-37126; Verone Italy
4. Department of Biosciences for Health, Ospedale Galeazzi; University of Milan, I-20161; Milan Italy
5. Policlinico san Marco; Dermatology Department, I-24040; Zingonia-Osio Sotto (BG) Italy
6. Department of Clinical and Experimental Medicine, Dermatology; University of Messina, I-98124; Messina Italy
7. Department of Medical and Surgical Specialities and Public Health; Unit of Clinical, Allergological and Venereological Dermatology, University of Perugia, I-06122; Perugia Italy
8. Department of Experimental, Specialized and Diagnostic Medicine, Dermatology; University of Bologna, I-40138; Bologna Italy
9. Department of Biomedical Science and Human Oncology, Dermatological Clinic; University of Bari, I-70124; Bari Italy