1Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, K1A 0K9, Canada
2Perinatal Epidemiology Research Unit, Dalhousie University. 5850-5980 University Ave, Halifax, NS, B3K 6R8, Canada
3Faculty of Health Sciences, Simon Fraser University, 8888 University Drive, Burnaby, B.C, V5A 1S6, Canada
4Laval University and CHU Research Centre, Quebec City, Quebec, Canada
5McMaster University Health Sciences Center, Hamilton, Ontario, Canada
6Institut national de santé publique du Québec (INSPQ), Quebec, Canada
7Healthy Environments and Consumer Safety Branch, Health Canada, Ottawa, Ontario, Canada
8University of Toronto, Toronto, ON, Canada
9Department of Environmental and Occupational Health, University of Montreal, Canada