1. Department of General Surgery, University of Toronto, Toronto, ON, Canada
2. Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada
3. Department of Obstetrics and Gynecology, St. Michael's Hospital/Unity Health Toronto, Toronto, ON, Canada
4. ICES, Toronto, ON, Canada
5. Division of Vascular Surgery, St. Michael's Hospital/Unity Health Toronto, Toronto, ON, Canada
6. Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC, Australia
7. Division of General Surgery, Women's College Hospital, Toronto, ON, Canada
8. Division of General Surgery, St. Michael's Hospital/Unity Health Toronto, Toronto, ON, Canada