1. Department of Dermatology Venereology and Allergology Central Teaching Hospital Bolzano‐Bozen Bolzano‐Bozen Italy
2. Department of Dermatology and Venereology Rīga Stradiņš University Rīga Latvia
3. Claudiana College of Health Professions Bolzano‐Bozen Italy
4. Center for Skin Diseases Hautzentrum am Holzmarkt Biberach a.d.R Germany
5. Department of Dermatology Eberhard‐Karls University Tübingen Tübingen Germany