A social indicator of access to medical care.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D003695:Delivery of Health Care / Q000592:standards*; D005260:Female; D006296:Health Services / Q000706:statistics & numerical data*; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D012923:Social Class; D012959:Socioeconomic Factors; D014481:United States