1. Department of Dermatology George Washington University School of Medicine Washington District of Columbia USA
2. Department of Dermatology Georgetown University School of Medicine Washington District of Columbia 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 New York New York USA
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 USA
17. Division of Dermatology, CHU de Québec Laval University Quebec City Quebec Canada