1 Institute for Health Services Research in Dermatology and Nursing (IVDP), University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany.
2 Department of Dermatology, University Hospital Zurich, Zurich, Switzerland.
3 Department of Dermatology, University Hospital Jena, Jena, Germany.
4 Dermatological Practice Günzburg, Günzburg, Germany.
5 Department of Dermatology, Medical University of Graz, Graz, Austria.
6 Melanom Info Germany - MID e. V., Essen, Germany.
7 Department of Dermatology, Venereology and Allergology, Division of Evidence-Based Medicine (dEBM), Charité - Universitätsmedizin Berlin, Berlin, Germany.
8 Department of Dermatology, Center for Skin Tumours, University Hospital Basel, Basel, Switzerland.
9 Skin and Laser Center Heilbronn, Heilbronn, Germany.