1. Center for Evidence‐based Healthcare University Hospital and Medical Faculty Carl Gustav Carus Dresden, TU Dresden Dresden Germany
2. Department of Dermatology and Allergy Charité‐Universitätsmedizin Berlin Berlin Germany
3. Department of Dermatology, Venereology and Allergology University Hospital Frankfurt Frankfurt/Main Germany
4. Working Group Evidence‐Based Medicine Frankfurt, Institute for General Practice Goethe University Frankfurt Frankfurt/Main Germany
5. Medical Sociology Institute of Epidemiology and Preventive Medicine University of Regensburg Regensburg Germany
6. Institute of Social Medicine and Health Economics Otto von Guericke University Magdeburg Magdeburg Germany
7. Department of General Internal Medicine and Psychosomatics Universität Heidelberg Heidelberg Germany
8. Centre of Evidence Based Dermatology University of Nottingham Nottingham UK
9. Department of Dermatology, Amsterdam Public Health, Infection and Immunity Amsterdam UMC, University of Amsterdam Amsterdam The Netherlands
10. Division of Epidemiology and Public Health, School of Medicine University of Nottingham Nottingham UK