Affiliations

• ¹ Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver, British Columbia, Canada. Electronic address: ksjoseph@bcchr.ca.
• ² Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver, British Columbia, Canada.
• ³ Department of Pediatrics, Université Laval, Quebec City, Quebec, Canada.
• ⁴ Departments of Obstetrics and Gynecology and Health Research Methods, McMaster University, Hamilton, Ontario, Canada.
• ⁵ Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden.
• ⁶ Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.
• ⁷ Departments of Obstetrics & Gynaecology and Pediatrics, Dalhousie University, Halifax, Nova Scotia, Canada.
• ⁸ Department of Obstetrics and Gynecology, NYU Grossman School of Medicine, New York, NY.
• ⁹ Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
• ¹⁰ Department of Obstetrics, Gynecology, and Reproductive Sciences, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ.