1. Department of Geriatric Medicine; Angers University Hospital; Angers France
2. UPRES EA4638; University of Angers; UNAM; Angers France
3. Robarts Research Institute; The University of Western Ontario; London ON Canada
4. Department of Medical Information; Lyon University Hospital; University Hospital; University of Lyon; Lyon France
5. Department of Geriatric Medicine; Institut du Vieillissement; Toulouse University Hospital; Toulouse France
6. Inserm; Toulouse France