A comparative clinical study of a prepared childbirth program.
D000700:Analgesics / Q000008:administration & dosage; D003237:Connecticut; D036861:Delivery, Obstetric; D005260:Female; D006266:Health Education; D006801:Humans; D007231:Infant, Newborn; D007743:Labor, Obstetric; D008297:Male; D011247:Pregnancy
D000700:Analgesics