1·Neural tube defects; Case control study; Risk factors.
神经管畸形；病例对照研究；危险因素。
2·Results The incidence of neural tube defect was increased.
神经管畸形发生率增加，唇腭裂、肢体畸形减少。
3·Folic acid helps prevent neural tube birth defects such as spina bifida.
叶酸能帮助防止诸如脊柱裂等神经管畸形出生缺陷的发生。
4·The chorionic villi cannot be used to test for open neural tube defects.
但绒毛膜绒毛不能够被用于检测开放性神经管缺损。
5·In 100,000 births, a screening program would avent 187 neural tube defects.
在100,000婴儿中，一项筛检可避免187个神经管缺陷。
6·Malnourished infants face complications during birth, including neural tube defects.
营养不良的婴儿出生时面临着包括神经管缺损的并发症。
7·Folic acid helps reduce the risk for neural tube defects in the developing fetus.
叶酸有助于减少胎儿发育过程中出现神经系统的畸形缺陷的风险。
8·The neural tube then might induce the formation of still other embryonic structures.
神经管可能诱导其他胚胎结构的形成。
9·In normal development, the neural tube from which the spine develops separates from the skin.
在正常的发育过程中，脊柱神经管会与皮肤分离。
10·The highest of neural tube defects is spina bifid a then is anencephaly encephalocele and so on.
发生率最高的神经管畸形是脊柱裂，其他依次为无脑畸形、脑膨出、小头畸形。