1. Department of Dermatolgogy Ludwigshafen City Hospital Ludwigshafen
2. Institute of Medical Microbiology and Hygiene Saarland University Homburg
3. Department of Dermatology and Allergy University Hospital, Ludwig Maximilian University Munich Munich
4. Department of Dermatology and Center for Dermatologic Surgery Eberhard‐Karls University of Tübingen Tübingen
5. Department of Dermatologic Surgery and Dermatology Artemed Clinic Munich Munich
6. Medical Supply Center for Histology Cytology, and Molecular Diagnostics Trier Trier
7. Center for Dermatology, Allergology and Dermatosurgery Helios University Hospital Wuppertal, University of Witten/Herdecke Wuppertal