Charting the conquest of senility.
D000368:Aged; D000544:Alzheimer Disease / Q000209:etiology / Q000451:nursing; D003704:Dementia / Q000209:etiology / Q000451:nursing; D006801:Humans; D009316:National Institutes of Health (U.S.); D009735:Nursing Homes; D012106:Research; D014481:United States