The incidence of NTD in Tianjin was 2.42 per 1000, among which there were 106 cases of anencephaly (45.9%), 95 cases of spina bifida (41.1%), and 30 cases of NTD complicated with deformities of other systems (13.0%).
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美
- 在231例神经管畸形中;无脑儿106例占45.;9%25(内部组成比用%25);脊柱裂95例占41