1. Division of Geriatrics, Department of Medicine, Centre Hospitalier de l’Université de Montréal, Canada (Q.D.N., P.D.).
2. Department of Anesthesia (E.P.)
3. Department of Psychiatry (A.W.)
4. Faculty of Medicine, Université de Montréal, Canada. Department of Family Medicine, Hôpital Cité-de-la-Santé, Laval, Canada (D.R.-L.).
5. Department of Medicine, Montreal Heart Institute, Canada (M.T.-G.).