Health status and medical care utilization.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006262:Health; D006296:Health Services / Q000706:statistics & numerical data*; D006304:Health Status; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D009017:Morbidity; D009026:Mortality; D012017:Referral and Consultation / Q000706:statistics & numerical data; D014481:United States