1. Goethe University; Evidence-Based Medicine Frankfurt, Institute of General Practice; Theodor Stern Kai 7 Frankfurt Germany 60590
2. J.W. Goethe-University Hospital; Department of Dermatology, Venereology, and Allergology; Theodor-Stern-Kai 7 Frankfurt Germany 60590
3. Hochschule RheinMain University of Applied Science; Wiesbaden Business School; Wiesbaden Germany
4. Faculty of Medicine Carl Gustav Carus, TU Dresden; Institute and Outpatient Clinics of Occupational and Social Medicine; Fetscherstr. 74 Dresden Germany 01307
5. University Hospital Carl Gustav Carus; Medical Department I; Fetscherstraâe 74 Dresden Germany 01307
6. The University of Nottingham; c/o Cochrane Skin Group; A103, King's Meadow Campus Lenton Lane Nottingham UK Ng7 1NR
7. Universitätsklinikum Carl Gustav Carus; Department of Dermatology; Fetscherstr. 74 Dresden Germany 01307
8. Faculty of Medicine Carl Gustav Carus, Technischen Universität (TU) Dresden; Center for Evidence-Based Healthcare; Fetscherstr. 74 Dresden Germany 01307