1. Department of Dermatology Donald & Barbara Zucker School of Medicine at Hofstra Northwell Hempstead NY USA
2. Department of Dermatology University of Pittsburgh Pittsburgh PA USA
3. Department of Dermatology Mayo Clinic Alix School of Medicine Rochester MN USA
4. Department of Dermatology Erasmus University Medical Center Rotterdam Netherlands
5. Department of Dermatology, Venereology and Allergology St Josef Hospital, Ruhr-University Bochum Germany
6. Department of Quality Measures and Research Clalit Health Services Tel Aviv Israel
7. Division of Dermatology Albert Einstein College of Medicine Bronx NY USA
8. Department of Dermatology Wayne State University School of Medicine Detroit MI USA
9. Department of Dermatology Erasme Hospital, Université Libre de Bruxelles Brussels Belgium
10. Centre Médical, Institut Pasteur Université de Paris Paris France
11. Department of Dermatology Zealand University Hospital Roskilde Denmark
12. Dermatology Department Emek Medical Center Afula Israel
13. 4th Department of Internal Medicine National and Kapodistrian University of Athens, Medical School Athens Greece
14. Department of Dermatology, Venereology and Allergology Wroclaw Medical University Wroclaw Poland
15. Departments of Dermatology University of Minnesota Minneapolis MN USA
16. Department of Dermatology, Faculty of Health Sciences University Hospital of North Norway, Institute of Clinical Medicine, UiT – The Arctic University of Norway Tromsø Norway
17. Hope For HS Detroit MI USA
18. Department of Dermatology Henry Ford Hospital Detroit MI USA
19. Department of Dermatology St Vincent’s University Hospital, and Charles Institute, University College Dublin Dublin Ireland
20. Division of Infection and Immunity Cardiff University, University Hospital of Wales Heath Park Cardiff UK
21. Department of Dermatology Renji Hospital School of Medicine, Shanghai Jiaotong University Shanghai China
22. Department of Dermatology Penn State Milton S Hershey Medical Center Hershey PA USA
23. The Rockefeller University New York City NY USA
24. Department of Dermatology, Perelman School of Medicine University of Pennsylvania Philadelphia PA USA
25. Department of Dermatology University of California San Francisco CA USA
26. Departments of Dermatology, Venereology, Allergology and Immunology Dessau Medical Center, Brandenburg Medical School Theodor Fontane and Faculty of Health Sciences Brandenburg Dessau Germany
27. Department of Dermatology Baylor University Medical Center, Texas A&M College of Medicine Dallas TX USA
28. Department of Dermatology Alicante University General Hospital, Alicante Institute for Health and Biomedical Research (ISABIAL-FISABIO Foundation) Alicante Spain
29. Department of Dermatology and Cutaneous Surgery Miller School of Medicine Miami FL USA
30. Dermatology Department Al Wakra Hospital, Hamad Medical Corporation Doha Qatar
31. Department of Dermatology University of North Carolina School of Medicine Chapel Hill NC USA
32. Department of Dermatology, Northern Clinical School, Sydney Medical School The University of Sydney Sydney NSW Australia
33. Department of Medicine Western University Windsor campus Windsor ON Canada
34. Danish HS Patients’ Association Copenhagen Denmark