1. Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Dermatology; Venereology und Allergy; Division of Evidence-Based Medicine (dEBM)
2. Skin Cancer Center; Department of Dermatology; Ludwigshafen Medical Center; Ludwigshafen Germany