Obstetricians' attitudes toward nurse-midwives.
D036861:Delivery, Obstetric; D006176:Gynecology; D007400:Interprofessional Relations; D008396:Maryland; D008880:Midwifery; D009773:Obstetric Nursing; D009774:Obstetrics; D011181:Postnatal Care; D011295:Prenatal Care