1. St. Mary's Research Centre; St Mary's Hospital Center; Montreal
2. Department of Epidemiology, Biostatistics and Occupational Health; McGill University; Montreal Quebec
3. Department of Psychiatry and St. Mary's Research Centre; St. Mary's Hospital Center; McGill University Montreal Quebec
4. Faculty of Nursing Sciences; Laval University; Quebec City Quebec
5. Division of Geriatric Medicine; Jewish General Hospital; Montreal Quebec
6. Donald Berman Maimonides Geriatric Center; Montreal Quebec
7. Department of Family Medicine; University Institute of Geriatrics of Montréal; Montreal Quebec
8. Department of Medicine; Université de Montréal; Montreal Quebec
9. Division of Geriatric Medicine; Centre Hospitalier de l'Université de Montréal; Montreal Quebec