1. Private Dermatological Practice Centre, Wuppertal, Germany
2. Faculty of Health, University Witten‐Herdecke, Witten, Germany
3. Private Dermatological Practice, Friedrichshafen, Germany
4. Private Practice, Dülmen, Germany
5. Dermatological Ambulatory, Hamburg, Germany
6. Day Hospital for Allergy and Skin Diseases, Kiel, Germany
7. Private Practice, Sellspeicher, Kiel, Germany
8. Dermatological Practice, Soest, Germany
9. Private Practice, Mahlow, Germany
10. Private Practice for Skin and Genital Diseases Altenkirchen, Altenkirchen, Germany
11. Private Dermatological Practice, Gilching, Germany
12. Medical Centre Bonn, Bonn, Germany
13. Dermatosurgery Center Nördlingen, Nördlingen, Germany
14. Dermatological Practice, Berlin, Germany
15. Dermatological Practice, Gelnhausen, Germany
16. Dermatological Practice, Clinical Study Centre, Berlin, Germany
17. Private Practice, Wuppertal, Germany
18. University Hospital Zurich, Clinic of Dermatology, Zurich, Switzerland
19. Cutis Sana Dermatologists, Blaubeuren, Germany
20. Centre for Dermatology Vechta, Vechta, Germany
21. SCIderm GmbH, Hamburg, Germany
22. Clinic for Dermatology und Allergology, Ludwig‐Maximilian‐University Munich, Munich, Germany
23. Department of Dermatology and Venereology, Research Unit for Photodermatology, Medical University of Graz, Graz, Austria
24. HELIOS Hospital Wuppertal, Wuppertal, Germany
25. Private Practice for Skin Diseases, Operative and Aesthetic Dermatology, Munich, Germany
26. University Hospital for Dermatology, Vienna, Austria
27. Accovion GmbH, Eschborn, Germany
28. Focus Clinical Drug Development GmbH, Neuss, Germany
29. Biofrontera Bioscience GmbH, Leverkusen, Germany
30. Klinikum Vest, Department of Dermatology and Allergology, Recklinghausen, Germany