1. Department of Obstetrics and Gynaecology, University of Toronto, Toronto, Ontario, Canada
2. Li Ka Shing Knowledge Institute, St Michael’s Hospital, Toronto, Ontario, Canada
3. Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC, Australia
4. ICES (formerly the Institute for Clinical Evaluative Sciences), Ontario, Canada
5. Division of Biostatistics, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
6. Department of Medicine, St Michael’s Hospital/Unity Health Toronto, Toronto, Ontario, Canada
7. Department of Medicine, London Health Sciences Centre, London, Ontario, Canada
8. Department of Psychiatry, Women’s College Hospital, Toronto, Ontario, Canada
9. Women’s College Research Institute, Women’s College Hospital, Toronto, Ontario, Canada
10. Department of Obstetrics and Gynecology, St Michael’s Hospital/Unity Health Toronto, Toronto, Ontario, Canada