1. Gérontopôle, Department of Internal Medicine and Geriatrics; Toulouse University Hospital; Toulouse France
2. INSERM U1027; University of Toulouse III; Toulouse France
3. Department of Epidemiology; Toulouse University Hospital; Toulouse France
4. Department of Neuroscience, Division of Geriatric Medicine, UPRES EA 4638, UNAM; Angers University Hospital, Angers University Center; Angers France
5. Department of Medical Information; Lyon University Hospital, University of Lyon; Lyon France