棱角

You are a sniper. You should have patience.

你作为一名狙击手，应该有耐心。

Anencephaly and spina bifida, with an approximately equal prealence, account for 95% of the cases and cephalocele for the remaining 5%.

然而大多数NTD的确切病因仍不清楚，一个母亲或以前的同胞有NTD，则再发率是5-10%。围产期给与叶酸补充可以减少一半的发生。