Result: The histological structure of anencephalus differentiates primitively and grows very slowly.
Result: The histological structure of anencephalus differentiates primitively and grows very slowly.
结果：无脑儿食管的组织学结构较正常胎儿分化较低，发育迟缓。
Result: The histological structure of anencephalus differentiates primitively and grows very slowly.
结果：无脑儿食管的组织学结构较正常胎儿分化较低，发育迟缓。