Serious person the child is in new student period can appear Xin door is particularly big, did not fold because of two parietal bone and before of Xin door hind horn and hind Xin door be connected to.
严重者孩子在新生儿期即可出现囟门非凡大，因为两顶骨未合拢而前囟门的后角与后囟门通连。
Folding door is a kind of door can fold, while being a door to open completely door folding to arrange at the door hole is one side or two sides.
折叠门是一种门扇可以折叠的门，当门完全开启时门扇折叠排列在门洞一侧或两侧。
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