1. Department of Dermatology, Venereology and Allergology; University Medical Center Göttingen; Göttingen Germany
2. Department of Dermatology; University of Duisburg-Essen; Essen Germany
3. Department of Dermatology and Allergology; University of Munich (LMU); Munich Germany
4. Department of Dermatology; Medical University of Vienna; Vienna Austria
5. Department of Dermatology; University Medical Center Mainz; Mainz Germany
6. Department of Dermatology; Medical University of Graz; Graz Austria
7. Department of Dermatology and Venerology; Universitätsklinikum Schleswig-Holstein; Campus Kiel Germany
8. Department of Dermatology and National Center for Tumor Diseases (NCT); University Hospital Heidelberg; Heidelberg Germany
9. Department of Dermatology and Allergy; Skin Cancer Center; Hannover Medical School; Hannover Germany
10. Department of Dermatology; University of Würzburg; Würzburg Germany