1. Department of Dermatology and Allergy School of Medicine Technical University of Munich Munich Germany
2. Center of Evidence‐Based Healthcare University Hospital Carl Gustav Carus and Carl Gustav Carus Faculty of Medicine Technische Universität Dresden Dresden Germany
3. Department of Dermatology University Allergy Center, Carl Gustav Carus Faculty of Medicine Technische Universität Dresden Dresden Germany
4. Division of Immunodermatology and Allergy Research Department of Dermatology and Allergy Hannover Medical School Hannover Germany
5. Center for Inflammatory Skin Diseases Department of Dermatology and Allergy University Hospital Schleswig‐Holstein Kiel Germany
6. Clinics for Dermatology Elbe Klinikum Buxtehude Buxtehude Germany
7. Clinics and Outpatient Clinics for Dermatology and Allergy LMU Munich Munich Germany
8. Practice Dr. med. Franca Wiemers Leipzig Germany
9. Occupational Dermatology Department of Dermatology University of Heidelberg Heidelberg Germany
10. Institute for Health Services Research in Dermatology Hamburg University Medical Center Hamburg Eppendorf Hamburg Germany
11. CMSS – Company for Medical Study and Service Selters/Westerwald Germany
12. Practice Dr. med. Anika Hünermund and Mario Pawlak Heilbad Heiligenstadt Germany
13. Department of Dermatology Ruprecht‐Karls University Heidelberg Heidelberg Germany
14. Hautmedizin Bad Soden Bad Soden am Taunus Germany
15. Clinics for Dermatology and Allergy University Hospital Aachen Aachen Germany