Social class differences in utilization of pediatric services in a prepaid direct service medical care program.
D000293:Adolescent; D001741:Black or African American; D044466:Asian People; D002140:California; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007348:Insurance, Health; D008297:Male; D010044:Outpatient Clinics, Hospital; D010372:Pediatrics; D012924:Social Conditions; D044465:White People