Current estimates from the Health Interview Survey: United States-1971.
D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D008875:Middle Aged; D009017:Morbidity; D010548:Personal Health Services / Q000706:statistics & numerical data; D012494:Sampling Studies; D012621:Seasons; D014481:United States