title: Elderly people posing a number of problems.
authors: Jean-Paul
authors: JP
authors: Macher
mesh_terms: D000368:Aged; D000375:Aging; D003072:Cognition Disorders / Q000235:genetics / Q000503:physiopathology; D004777:Environment; D020022:Genetic Predisposition to Disease; D006801:Humans; D019636:Neurodegenerative Diseases / Q000235:genetics / Q000503:physiopathology