Nurse-midwifery and family planning in the United States: data from the 1976-1977 American College of Nurse-Midwives' study.
D000328:Adult; D005193:Family Planning Services; D005260:Female; D006266:Health Education / Q000639:trends; D006801:Humans; D008427:Maternal Health Services / Q000639:trends; D008880:Midwifery; D009721:Nurse Midwives / Q000639:trends; D010353:Patient Education as Topic; D011247:Pregnancy; D014481:United States