1. Division of Evidence Based Medicine (dEBM); Department of Dermatology; Charité - Universitätsmedizin Berlin; Berlin Germany
2. Department of Dermatology and Venereology; University Hospital Centre Zagreb; School of Medicine; University of Zagreb; Zagreb Croatia
3. Department of Dermatology and Venereology; Federal Academic Teaching Hospital; Feldkirch Austria
4. Evidence-Based Medicine Frankfurt; Institute for General Practice; Goethe University; Frankfurt Germany
5. Department of Dermatology; J.W. Goethe-University Hospital; Frankfurt Germany