1. Department of Dermatology Park Nicollet/Health Partners 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. Warren Alpert Medical School of Brown University Providence Rhode Island USA
5. Division of Dermatology, Sunnybrook Health Sciences Centre University of Toronto Toronto Ontario Canada
6. Department of Dermatology Cleveland Clinic Cleveland Ohio USA
7. Department of Dermatology Columbia University Irving Medical School New York New York USA
8. Department of Dermatology University of Wisconsin School of Medicine and Public Health Madison Wisconsin USA
9. Department of Dermatology, Keck School of Medicine University of Southern California Los Angeles California USA
10. Division of Dermatology University of Ottawa Ottawa Ontario Canada
11. Department of Dermatology Duke University Medical Center Durham North Carolina USA
12. Department of Dermatology University of California San Francisco San Francisco California USA
13. Department of Dermatology The George Washington University School of Medicine and Health Sciences Washington DC USA
14. Department of Dermatology Massachusetts General Hospital/Harvard Medical School Boston Massachusetts USA
15. Division of Dermatology University of Louisville Louisville Kentucky USA
16. Division of Dermatology, Centre Hospitalier Universitaire de Québec Laval University Québec City Quebec Canada
17. Division of Dermatology Geisinger Medical Center Danville Pennsylvania USA
18. Department of Dermatology University of Colorado Aurora Colorado USA