Methods The pregnant women performed ultrasound examinations during second or third trimester in our hopital, if abnormal fetus were found and compared after childbirth.
方法对妊娠中、晚期孕妇进行超声检查，发现畸形胎儿与分娩后作对比。
Methods The pregnant women performed ultrasound examinations during second or third trimester in our hopital, if abnormal fetus were found and compared after childbirth.
方法对妊娠中、晚期孕妇进行超声检查，发现畸形胎儿与分娩后作对比。
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