1. Department of DermatologyEssen University Medical Center Essen Germany
2. Translational Skin Cancer ResearchGerman Cancer Consortium (DKTK)
3. German Cancer Research Center (DKFZ) Heidelberg Germany
4. Department of DermatologyTübingen University Medical Center Tübingen Germany
5. Department of Oral and Maxillofacial Plastic SurgeryRostock University Medical Center Rostock Germany
6. Department of DermatologyBochum University Medical Center Bochum Germany
7. Department of DermatologyMainz University Medical Center Mainz Germany
8. MVZ Charité Vivantes Berlin Germany
9. Department of RadiologyTübingen University Medical Center Tübingen Germany
10. Department of Plastic and Aesthetic SurgeryHornheide Medical Center Münster Germany
11. Department of Oral and Maxillofacial Plastic SurgeryWürzburg University Medical Center Würzburg Germany
12. Department of DermatologySaarland University Medical Center Homburg Germany
13. Center for DermatosurgeryHavelklinik Berlin Germany
14. Center of Clinical EpidemiologyInstitute of Medical Informatics, Biometry and EpidemiologyEssen University Medical Center Essen Germany
15. Department of DermatologyUniversity of Lübeck Lübeck Germany
16. Department of Otorhinolaryngology and Head and Neck SurgeryUlm University Medical Center Ulm Germany
17. Department of DermatologyCologne University Medical Center Cologne Germany