Methods The S/d value, RI value of UA, MCA and RA blood flow of 112 fetus cases were detected with color Doppler among them there were 64 cases of normal pregnancy and 48 cases PIH.
方法应用多普勒超声技术检测112例胎儿的脐动脉、大脑中动脉、肾动脉血流的S/D值、RI值，其中正常妊娠64例，妊高征48例。
Half the fetus' s genes are foreign material, coming from the father.
胎儿的另一半基因是来自父亲的外来物。
Ultrasound mediated selective reduction is a relatively safe, effective and microinvasive operation. But reduction operation may induce abortion(s) of fetus(es) in multiple pregnancy in some cases.
超声介导下选择性减胎是一种安全、有效的微创操作技术。
According to data, about 700,000 pregnant women annually in the U. s. are advised to go on bed rest, including nearly all women pregnant with more than one fetus.
根据数据，在美国每年大约有700,000孕妇被建议继续卧床休息，几乎包括所有多胞胎母亲。
According to data, about 700,000 pregnant women annually in the U. s. are advised to go on bed rest, including nearly all women pregnant with more than one fetus.
根据数据，在美国每年大约有700,000孕妇被建议继续卧床休息，几乎包括所有多胞胎母亲。
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