胎儿神经系统发育畸形是最常见的胎儿先天异常，超声成像是产前发现胎儿脑畸形的常用诊断方法。
The neural abnormality of the fetus is the most common malformations and ultrasonography is the familiar method to diagnose.
胎儿神经系统发育畸形是最常见的胎儿先天异常，超声成像是产前发现胎儿脑畸形的常用诊断方法。
The neural abnormality of the fetus is the most common malformations and ultrasonography is the familiar method to diagnose.
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