1 University of Montreal Hospital Research Centre and Institut national de santé publique du Québec, Montréal, Québec, Canada.
2 Department of Obstetrics & Gynecology, Sherbrooke University Hospital Research Centre, Sherbrooke, Québec, Canada.
3 Institut national de santé publique du Québec and, Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montréal, Québec, Canada.
4 Faculty of Medicine, McGill University, Montréal, Québec, Canada.
5 Department of Ophthalmology, University of Montreal, Montréal, Québec, Canada.