1. Department of Dermatology University Medical Centre Mannheim University of Heidelberg Mannheim Germany
2. Skin Cancer Unit German Cancer Research Center (DKFZ) Heidelberg Germany
3. Section of Clinical and Experimental Dermatology Medical Faculty Mannheim Heidelberg University Mannheim Germany
4. Dipartimento di Medicina Interna UOC Dermatologia IRCCS Ca' Granda Foundation–Ospedale Maggiore Policlinico Milan Italy