1. Department of Dermatology Park Nicollet Health Services Minneapolis Minnesota USA
2. Department of Dermatology University of Minnesota Minneapolis Minnesota USA
3. Department of Dermatology Minneapolis Veterans Affairs Medical Center Minneapolis Minnesota USA
4. School of Medicine University of Minnesota‐Twin Cities Minneapolis Minnesota USA
5. Department of Dermatology Duke University Medical Center Durham North Carolina USA
6. Department of Dermatology University of California San Francisco San Francisco California USA
7. Division of Dermatology Montreal General Hospital, McGill University Montreal Quebec Canada
8. Department of Dermatology University of Wisconsin School of Medicine and Public Health Madison Wisconsin USA
9. Division of Dermatology Sunnybrook Health Sciences Centre, University of Toronto Toronto Ontario Canada
10. Department of Dermatology Cleveland Clinic Cleveland Ohio USA
11. Department of Dermatology Columbia University Irving Medical School New York New York USA
12. Department of Dermatology The George Washington University School of Medicine and Health Sciences Washington District of Columbia USA
13. Department of Dermatology Dartmouth‐Hitchcock Medical Center Lebanon New Hampshire USA
14. Division of Dermatology University of Louisville Louisville Kentucky USA
15. Division of Dermatology University of Ottawa Toronto Ontario Canada
16. Department of Dermatology Associates in Dermatology Fort Myers Florida USA
17. Department of Dermatology Keck School of Medicine Los Angeles California USA
18. Division of Dermatology CHU de Québec, Laval University Quebec City Quebec Canada
19. Department of Dermatology University of Colorado Boulder Colorado USA