1. Environmental Health Science and Research Bureau, Health Canada Ottawa Ontario Canada
2. University of Ottawa, School of Epidemiology and Public Health (SEPH) Ottawa Ontario Canada
3. Nutrition Research Division Health Products and Food Branch, Health Canada Ottawa Ontario Canada
4. School of Nutrition, Laval University Québec city Québec Canada
5. Simon Fraser University. Vancouver, British Columbia Canada Vancouver British Columbia Canada
6. Department of Epidemiology and Biostatistics School of Public Health and Health Sciences, University of Massachusetts Amherst Boston Massachusetts USA
7. Department of Epidemiology Brown University Providence Rhode Island USA
8. The Ottawa Hospital Research Institute Ottawa Ontario Canada
9. Centre de Recherche du CHUS, and Department of Obstetrics and gynecology University of Sherbrooke Sherbrooke Québec Canada