Obstetrical sonography: the best way to terrify a pregnant woman.
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D004314:Down Syndrome / Q000000981:diagnostic imaging; D005239:Fear / Q000523:psychology*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000000981:diagnostic imaging* / Q000523:psychology*; D012307:Risk Factors; D016216:Ultrasonography, Prenatal / Q000523:psychology*