CHU Sainte-Justine Research Center, Department of Obstetrics and Gynecology, Faculty of Medicine, University of Montreal, Montreal, QC H3T 1C5, Canada. Institut National de Santé Publique du Québec, Montreal, QC H2P 1E2, Canada. School of Human Nutrition, McGill University, Montreal, QC H9X 3L9, Canada. OMNI Research Group, Ottawa Hospital Research Institute, Ottawa, ON K1H 8L6, Canada. Department of Obstetrics, Gynecology, and Newborn Care, University of Ottawa, Ottawa, ON K1N 6N5, Canada. School of Epidemiology and Public Health, University of Ottawa, Ottawa, ON K1G 5Z3, Canada.