Nurse-midwifery in the United States.
D001723:Birth Rate; D005260:Female; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D007396:Internship and Residency; D008297:Male; D008880:Midwifery; D009773:Obstetric Nursing; D009774:Obstetrics; D011247:Pregnancy; D014481:United States; D000078329:Workforce