Olivier Beauche1, Julia Chabot2, Shek Fung3, Cyrille P Launay4. 1. Department of Medicine, Division of Geriatric Medicine, Sir Mortimer B. Davis-Jewish General Hospital and Lady Davis Institute for Medical Research, McGill University, Montreal, Quebec, Canada; Faculty of Medicine, McGill University, Montreal, Quebec, Canada; Centre of Excellence on Longevity of McGill integrated University Health Network, Quebec, Canada. 2. Department of Medicine, Division of Geriatric Medicine, Sir Mortimer B. Davis-Jewish General Hospital and Lady Davis Institute for Medical Research, McGill University, Montreal, Quebec, Canada; Department of Medicine, Division of Geriatric Medicine, St Mary's Hospital Center, McGill University, Montreal, Quebec, Canada. 3. Department of Medicine, Division of Geriatric Medicine, St Mary's Hospital Center, McGill University, Montreal, Quebec, Canada. 4. Division of Geriatric Medicine and Rehabilitation, Department of Medicine, Lausanne University Hospital, Switzerland.