title: Obstetrics and gynecology.
abstract: Emergency contraception could reduce the number of unintended pregnancies by 1.7 million. The best approach to oral contraception is education and not limitation, but it is unlikely that there will be any increase in contraceptive availability in the near future. Routine ultrasonography in low-risk pregnancies does not appear to be cost-effective.
authors.affiliation: Northwestern University Medical School, Chicago, Ill.
authors.forename: A C
authors.initials: AC
authors.lastname: Wentz
authors.forename: G R
authors.initials: GR
authors.lastname: Huggins
mesh_terms: D006176:Gynecology / Q000639:trends*; D009774:Obstetrics / Q000639:trends*; D014481:United States