5 Cooperative Unit Dermato-Oncology at the German Cancer Research Center Heidelberg (DKFZ) and the Department of Dermatology, Venereology and Allergology, Medical Faculty Mannheim, Ruprecht-Karls University Heidelberg.
6 Department and Clinif for Dermatology and Venereology, University Hospital Cologne.
7 Sarcoma Center, University of Heidelberg, University Hospital Mannheim.
8 Department of Dermatology, Venereology and Allergology, University Mainz.