Emergency obstetrical ultrasonography.
Doubilet
P M
PM
Department of Radiology, Brigham and Women's Hospital, Boston, MA 02115, USA.
Benson
C B
CB
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