一些夫妇喜欢等到妊娠中期再公布消息，这个时候流产的风险已经大大的减少了。
Some couples like to wait until the second trimester, when the risk of miscarriage is greatly reduced.
病人们被募集来参加非整数倍的筛选，FASTER测验的目的之一是预测当代妊娠中期羊膜穿刺术相关的流产率。
One of the purposes of the FASTER trial was to calculate the contemporary procedure-related loss rate after midtrimester amniocentesis using patients who were recruited for aneuploidy screening.
病人们被募集来参加非整数倍的筛选，FASTER测验的目的之一是预测当代妊娠中期羊膜穿刺术相关的流产率。
One of the purposes of the FASTER trial was to calculate the contemporary procedure-related loss rate after midtrimester amniocentesis using patients who were recruited for aneuploidy screening.
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