Caregivers of the frail elderly: a national profile.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D006233:Persons with Disabilities; D005260:Female; D006299:Health Services for the Aged; D006701:Home Nursing; D006801:Humans; D008297:Male; D008875:Middle Aged