Older people now more able-bodied than before.
Marwick
C
C
D000368:Aged; D000369:Aged, 80 and over; D006233:Persons with Disabilities / Q000706:statistics & numerical data*; D005853:Geriatrics; D006801:Humans; D008134:Long-Term Care / Q000706:statistics & numerical data*; D014481:United States / Q000453:epidemiology