1. Department of Dermatology; Mainz University Medical Center; Mainz Germany
2. Department of Radiation Oncology; Frankfurt University Medical Center; Frankfurt Germany
3. Department of Dermatology; Carl Gustav Carus University Medical Center; Dresden Germany
4. Dermatology and Teaching Practice; Konstanz Germany
5. Department of Plastic; Aesthetic; Hand and Reconstructive Surgery; Hanover Medical School; Hanover Germany
6. CentroDerm Clinic; Wuppertal Germany
7. Faculty of Health; Witten-Herdecke University; Witten Germany
8. German Cancer Society; Berlin Germany
9. Department of Dermatology; Venereology and Allergology; Göttingen University Medical Center; Göttingen Germany
10. Department of Oral and Maxillofacial Plastic Surgery; Rostock University Medical Center; Rostock Germany
11. Dermatology and Laser Center; Landau Germany
12. Department of Dermatology; Venereology and Allergology; Schleswig-Holstein University Medical Center; Kiel Germany
13. Department of Ophthalmology; Cologne University Medical Center; Cologne Germany
14. Department of Oral and Maxillofacial Surgery; Gießen University Medical Center; Gießen Germany
15. Laboratory for Dermatohistology and Oral Pathology; Munich Germany
16. Department of Ophthalmology; Schleswig-Holstein University Medical Center; Lübeck Germany
17. Department of Ophthalmology; Rostock University Medical Center; Rostock Germany
18. Department of Diagnostic and Interventional Radiology; Tübingen University Medical Center; Tübingen Germany
19. Department of Radiology; Rems-Murr Medical Center; Winnenden Germany
20. Department of Plastic and Aesthetic Surgery; Gütersloh Medical Center; Germany
21. Department of Dermatology; Ludwigshafen Medical Center; Ludwigshafen Germany
22. Department of Dermatology; Venereology and Allergology; Frankfurt University Medical Center; Frankfurt Germany
23. Department of Dermatology; Allergology and Phlebology; Bremerhaven Medical Center; Bremerhaven Germany
24. Department of Dermatology and Allergology; Munich University Medical Center; Munich Germany
25. Oral and Maxillofacial Surgery Practice; Halle Germany
26. Department of Dermatology; Venereology and Allergology; Helios Medical Center; Hildesheim Germany
27. Department of Radiation Oncology; Halle University Medical Center; Martin Luther University; Halle Germany
28. Department of Dermatology and Allergology; Augsburg Medical Center; Augsburg Germany
29. Department of Otolaryngology; Leipzig University Medical Center; Leipzig Germany