1. Department of Medicine Section of Dermatology and Venereology University of Verona Verona Italy
2. Centro Studi GISED Bergamo Italy
3. Department of Dermatology Inselspital University Hospital of Bern Bern Switzerland
4. Division of Dermatology San Bortolo Hospital Vicenza Italy
5. Department of Medicine Section of Dermatology University of Padua Padua Italy
6. Division of Dermatology Ospedale Santa Maria della Misericordia Rovigo Italy
7. Division of Dermatology Ospedale Ca' Foncello di Treviso Treviso Italy
8. Department of Pathology and Diagnostics Section of Pathology University Hospital of Verona Verona Italy
9. Division of Pathology San Bortolo Hospital Vicenza Italy