The most common neural tube defects are spina bifida, in which the spin al cord fails to close completely during fetal development, and anencephaly, in which part or all of the brain doesn't develop.
最常见的神经管缺陷是脊柱裂，它是指胎儿期脊髓没有被完全封闭，和无脑畸形，它指部分或全部脑组织没有发育。
Daily supplementation with folic acid for 1 month prior to conception and during pregnancy may reduce the incidence of neural tube defects such as spina bifida and anencephaly in the child.
在怀孕前一个月及怀孕过程中对叶酸的补充会减低胎儿患神经系统疾病的机率，例如脊柱裂和脑血管畸型。
Results There are 96 neural malformation with more common hydrocephalus anencephaly exencephaly and spina bifida in all malformations of 359 cases accounting for 26.7%.
结果共检出胎儿畸形359例，其中中枢神经系统畸形96例（26.7%），较常见的有脑积水、无脑畸形、露脑畸形及脊柱裂。
Results There are 96 neural malformation with more common hydrocephalus anencephaly exencephaly and spina bifida in all malformations of 359 cases accounting for 26.7%.
结果共检出胎儿畸形359例，其中中枢神经系统畸形96例（26.7%），较常见的有脑积水、无脑畸形、露脑畸形及脊柱裂。
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