Age patterns in medical care, illness, and disability. United States, 1968-1969.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D008875:Middle Aged; D009017:Morbidity; D010548:Personal Health Services / Q000706:statistics & numerical data*; D014481:United States