1. Department of Dermatology George Washington University School of Medicine Washington District of Columbia USA
2. Department of Dermatology Northwestern University Feinberg School of Medicine Chicago Illinois USA
3. Department of Dermatology Park Nicollet Health Services Minneapolis Minnesota USA
4. Department of Dermatology University of Minnesota Minneapolis Minnesota USA
5. Department of Dermatology Minneapolis Veterans Affairs Medical Center Minneapolis Minnesota USA
6. Department of Dermatology University of California San Francisco San Francisco California USA
7. Department of Dermatology Columbia University Irving Medical Center New York New York United States
8. Division of Dermatology, Sunnybrook Health Sciences Centre University of Toronto Toronto Ontario Canada
9. Department of Dermatology Dartmouth‐Hitchcock Medical Center Lebanon New Hampshire USA
10. Department of Dermatology Cleveland Clinic Cleveland Ohio USA
11. Division of Dermatology Montreal General Hospital, McGill University Montreal Quebec Canada
12. Department of Dermatology Keck School of Medicine Los Angeles California USA
13. Division of Dermatology University of Ottawa Ottawa Ontario Canada
14. Department of Dermatology University of Wisconsin School of Medicine and Public Health Madison Wisconsin USA
15. Department of Dermatology Duke University Medical Center Durham North Carolina USA
16. Division of Dermatology University of Louisville Louisville Kentucky United States
17. Division of Dermatology Centre Hospitalier Universitaire (CHU) de Québec, Laval University Quebec City Quebec Canada