NURSE MIDWIFERY--AN EXPERIMENT IN MATERNITY CARE.
D001942:Breast Feeding; D005260:Female; D006801:Humans; D008880:Midwifery; D009721:Nurse Midwives; D009729:Nursing; D009774:Obstetrics; D011247:Pregnancy; D013223:Statistics as Topic; D014481:United States
MIDWIFERY; NURSING; OBSTETRICS; STATISTICS; UNITED STATES