1. Division of Dermatology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
2. Women’s College Research Institute, Women’s College Hospital, Toronto, Ontario, Canada
3. Division of Dermatology, Department of Medicine, Women’s College Hospital, Toronto, Ontario, Canada
4. Department of Dermatology, Warren Alpert Medical School of Brown University, Providence, Rhode Island
5. Department of Epidemiology, School of Public Health, Brown University, Providence, Rhode Island
6. Dermatoepidemiology Unit, Providence Veterans Affairs Medical Center, Providence, Rhode Island
7. Epidemiology Department, Richard M. Fairbanks School of Public Health, Indiana University, Indianapolis
8. Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts