1. Department of Dermatology and Venereology Aristotle University of Thessaloniki Medical School Thessaloniki Greece
2. Department of Dermatology and Allergology University of Szeged Szeged Hungary
3. Department of Dermatology and Venereology University Hospital Center and School of Medicine Zagreb Zagreb Croatia
4. Department of Dermatology Medical University of Graz Graz Austria
5. Department of Dermatology Nottingham University Hospital Nottingham UK
6. Department of Dermatology, Venereology and Allergy Division of Evidence‐Based Medicine Charité ‐ Universitätsmedizin Berlin Corporate Member of Freie Universität Berlin Humboldt‐Universität zu Berlin and Berlin Institute of Health Berlin Germany
7. Oslo University Hospital Oslo Norway
8. Department of Dermatology and Allergology LMU Munich Germany
9. Department of Dermatology Oxford University Hospitals NHS Trust and University of Oxford Oxford UK
10. Center for Dermatology and Hair Diseases Wallisellen Switzerland
11. Department of Dermatology Hospital del Mar Barcelona Spain
12. Department of Dermatology Erasmus MC Rotterdam The Netherlands