Objective:To investigate the consistency between two maternal serum screening for Down′s syndrome in the second trimester pregnancy.
目的调查两种孕中期唐氏综合征产前筛查方法的一致性。
To investigate the clinical value of second trimester maternal serum screening and umbilical artery Doppler for prediction of adverse pregnancy outcome.
探讨孕中期母血清标志物及脐动脉血流用于预测不良妊娠结局的临床价值。
Objective To determine the sensitivity and false-positive rate of maternal serum pregnancy associated plasma protein a (PAPP-A) screening for abnormal fetal karyotype.
目的分析妊娠相关血浆蛋白a (PAPP - A)在产前筛查胎儿染色体病时的灵敏度和假阳性。
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