1. Center for Clinical Epidemiology, Lady Davis Research Institute, Jewish General Hospital, Montreal, QC, Canada
2. Ungava Tulattavik Health Center, Kuujjuaq, QC, Canada
3. Oral Health and Society Research Unit, Faculty of Dentistry, McGill University, Montreal, QC, Canada
4. Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, QC, Canada
5. Department of Medicine, McGill University, Montreal, QC, Canada