Role of transvaginal ultrasonography in the diagnosis of ectopic pregnancy.
Mol
B W
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Van der Veen
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D005260:Female; D006801:Humans; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000000981:diagnostic imaging*; D016216:Ultrasonography, Prenatal / Q000379:methods*; D014621:Vagina