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Methods 5 cases of vasa previa in velamentous insertion of umbilical cord were analyzed retrospectively.
方法对5例脐带帆状附着前置血管进行回顾性分析。
youdao
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Methods 5 cases of vasa previa in velamentous insertion of umbilical cord were analyzed retrospectively.
方法对5例脐带帆状附着前置血管进行回顾性分析。
youdao