1. Women’s College Research Institute, Women’s College Hospital, Toronto, Ontario, Canada2Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada3Division of Dermatology, Department of Medicine, University of Toronto, Ontario, Canada
2. Women’s College Research Institute, Women’s College Hospital, Toronto, Ontario, Canada2Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada
3. Division of Dermatology, Department of Medicine, University of Toronto, Ontario, Canada
4. Women’s College Research Institute, Women’s College Hospital, Toronto, Ontario, Canada
5. Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada
6. Department of Dermatology, Brown University, Providence, Rhode Island5Department of Epidemiology, Brown University, Providence, Rhode Island