Ambulatory care utilization patterns of children and young adults: National Ambulatory Medical Care Survey United States, January-December 1975.
D000293:Adolescent; D000328:Adult; D000553:Ambulatory Care / Q000706:statistics & numerical data*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D010820:Physicians / Q000706:statistics & numerical data*; D014481:United States