1. Vaterstetten Germany
2. Department of Dermatology; Technical University of Dresden; Dresden Germany
3. Institute of Epidemiology and Medical Biometry; University of Ulm; Ulm Germany
4. Department of Dermatology; University of Ulm; Ulm Germany
5. Skin Cancer Unit; German Cancer Research Center (DKFZ); Heidelberg Germany
6. Department of Dermatology, Venereology and Allergology; University Medical Center Mannheim; Ruprecht-Karl University of Heidelberg; Mannheim Germany
7. Center of Dermato-Oncology; Department of Dermatology; University of Tübingen; Tübingen Germany