Nutritional needs and effects of poor nutrition in elderly persons.
D000368:Aged; D001519:Behavior; D004032:Diet; D064420:Drug-Related Side Effects and Adverse Reactions; D006801:Humans; D008660:Metabolism / Q000187:drug effects; D009748:Nutrition Disorders; D009747:Nutritional Physiological Phenomena; D009751:Nutritional Requirements; D009765:Obesity / Q000209:etiology