1. Dermatology Unit IRCCS Humanitas Research Hospital Milan Italy
2. Department of Biomedical Sciences Humanitas University Milan Italy
3. Dermatology Unit Azienda Ospedaliera di Cosenza Cosenza Italy
4. Dermatology Unit University of Campania L Naples Italy
5. Dermatology Unit Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milan Italy
6. Department of Biomedical Science and Human Oncology, Second Dermatologic Clinic University of Turin Turin Italy
7. Section of Dermatology, Department of Health Sciences (Di.S.Sal), IRCCS ‐ San Martino Polyclinic Hospital University of Genoa Genoa Italy
8. Section of Dermatology and Venereology, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe‐J) University of Bari “Aldo Moro” Bari Italy
9. Department of Dermatology Dermatology Unit Azienda Ospedaliera San Donato Milanese Milan Italy
10. Section of Dermatology and Venereology, Department of Medicine University of Verona Verona Italy
11. Section of Dermatology, Department of Clinical Medicine and Surgery University of Naples Federico II Naples Italy
12. Department of Emergency and Organ Transplantation, School of Allergology and Clinical Immunology University of Bari Aldo Moro Bari Italy
13. Section of Dermatology, Health Sciences Department Magna Graecia University Catanzaro Italy
14. Department of Dermatology San Bortolo Hospital Vicenza Italy
15. A Study Centre of the Italian Group for the Epidemiologic Research in Dermatology (GISED) Bergamo Italy
16. Dermatology Department University of Brescia Brescia Italy
17. Department of Dermatology University of Modena and Reggio Emilia Modena Italy