1. Departments of Medicine, and Obstetrics and Gynecology, St Michael’s Hospital, Toronto, Ontario, Canada2Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada3University of Toronto, Toronto, Ontario, Canada5Keenan Research Centre, Li Ka Shing Knowledge Institute, St Michael’s Hospital, Toronto, Ontario, Canada
2. Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada3University of Toronto, Toronto, Ontario, Canada
3. University of Toronto, Toronto, Ontario, Canada4Department of Medical Imaging, St Michael’s Hospital, Toronto, Ontario, Canada
4. Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada5Keenan Research Centre, Li Ka Shing Knowledge Institute, St Michael’s Hospital, Toronto, Ontario, Canada