Maternal and child health services in the United States.
Wagner
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D002662:Child Health Services / Q000191:economics / Q000639:trends; D002675:Child, Preschool; D005260:Female; D006291:Health Policy; D006801:Humans; D007223:Infant; D008427:Maternal Health Services / Q000191:economics / Q000639:trends; D008880:Midwifery; D009313:National Health Programs; D010371:Pediatric Nursing; D011295:Prenatal Care; D014481:United States