1. University of Montreal Hospital Research Centre, Montreal, Quebec, Canada
2. Institut national de santé publique du Québec, Montreal, Quebec, Canada
3. Department of Social and Preventive Medicine, School of Public Health, University of Montreal, Montreal, Quebec, Canada
4. Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montreal, Quebec, Canada
5. Division of Adolescent Medicine, Department of Pediatrics, Sainte-Justine University Hospital Centre, University of Montreal, Montreal, Quebec, Canada
6. Department of Psychiatry, McGill University, Montreal, Quebec, Canada