Risk of preterm birth by height of cerclage as a percentage of cervical length.
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资源简介：
The relative risk of preterm birth before 34 and 37 weeks of gestation is shown in women with cerclages placed in the distal half (represented as 50%).
本数据集呈现了宫颈远端半段行宫颈环扎术（cerclage）的孕妇群体中，妊娠34周前及妊娠37周前早产的相对风险，该亚组在数据集中以50%占比示意。
创建时间：
2017-06-02
