1 Department of Obstetrics, Gynecology, and Newborn Care, University of Ottawa and Ottawa Hospital Research Institute, Ottawa, Ontario, Canada. Electronic address: susingh@toh.ca.
2 Department of Obstetrics and Gynecology, University of Calgary, Calgary, Alberta, Canada.
3 Department of Obstetrics and Gynecology Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada.
4 SCRIPT, Toronto, Ontario, Canada.
5 Department of Obstetrics and Gynecology, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada.