1. Division of Evidence-Based Medicine, Department of Dermatology, Venereology and Allergology, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Berlin, Germany; and
2. Hautklinik, Hauttumorzentrum, Klinikum Ludwigshafen gGmbH, Ludwigshafen, Germany