title: Emergency obstetrical ultrasonography.
authors.affiliation: Department of Radiology, Brigham and Women's Hospital, Boston, MA 02115, USA.
authors.forename: P M
authors.initials: PM
authors.lastname: Doubilet
authors.forename: C B
authors.initials: CB
authors.lastname: Benson
mesh_terms: D000465:Algorithms; D005314:Embryonic and Fetal Development; D004630:Emergencies; D005260:Female; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000000981:diagnostic imaging*; D018608:Ultrasonography, Doppler; D016216:Ultrasonography, Prenatal