1. Institut national de santé publique du Québec, Montreal, Quebec, Canada
2. Department of Environmental and Occupational Health, School of Public Health, University of Montreal, Montreal, Quebec, Canada
3. Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Quebec, Canada
4. University of Montreal Hospital Research Centre, University of Montreal, Montreal, Quebec, Canada
5. Department of Social and Preventive Medicine, University of Montreal, Montreal, Quebec, Canada