1. Department of Dermatology Ghent University Hospital Ghent Belgium
2. Department of Dermatology, Institute for Pigment Disorders and Infection Immunity Institute Amsterdam UMC Amsterdam The Netherlands
3. Department of Dermatology Henri Mondor Hospital, UPE‐Université Paris‐Est Créteil France
4. Department of Dermatology The University of Texas Southwestern Medical Center Dallas Texas
5. Department of Dermatology Henry Ford Hospital Detroit Michigan
6. Department of Dermatology The University of Massachusetts Medical School Worcester Massachusetts
7. Centre of Evidence Based Dermatology University of Nottingham Nottingham UK
8. Department of Dermatology, Faculty of Medicine Cairo University Cairo Egypt
9. Department of dermatology Ajou University School of Medicine Suwon Korea
10. Department of Dermatology, Fiona Stanley Hospital University of Western Australia Perth Western Australia Australia
11. Department of Dermatology, Kaohsiung Medical University Hospital and College of Medicine Kaohsiung Medical University Kaohsiung Taiwan
12. Department of Dermatology Postgraduate Institute of Medical Education & Research Chandigarh India
13. Department of Dermatology Westville Hospital Westville South Africa
14. Department of Dermatology Huashan Hospital, Fudan University Shanghai China
15. Department of Dermatology, Faculty of Medicine Yamagata University Yamagata Japan
16. Department of Epidemiology and Biostatistics, Amsterdam Public Health Research Institute Amsterdam UMC Amsterdam The Netherlands
17. Department of Dermatology, INSERM U 1035 Bordeaux University Hospitals, University of Bordeaux Bordeaux France
18. San Gallicano Dermatologic Institute Rome Italy