Transvaginal sonography in extrauterine and intrauterine pregnancy.
Coleman
B G
BG
Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia 19104.
D005260:Female; D006801:Humans; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000000981:diagnostic imaging*; D016216:Ultrasonography, Prenatal