1. Center for Dermatology Allergology and Dermatosurgery Helios University Hospital Wuppertal University of Witten/Herdecke Wuppertal Germany
2. Faculty of Health University of Witten/Herdecke Witten Germany
3. PROderma® Institute for Dermatology Bocholt Germany
4. Department of Dermatology University Medical Center Hamburg‐Eppendorf Hamburg Germany
5. Department of Dermatology Ludwigshafen Medical Center Ludwigshafen Germany