umbilical vein造句

1、Objective To explore the effect of umbilical vein catheterization on premature infants.
目的探讨脐静脉插管术在早产儿中的应用效果。

2、orrelation study on S-100 protein of neonate umbilical vein and Apgar score
新生儿脐带血S-100蛋白与窒息Apgar评分相关性研究

3、Methods Human umbilical vein endothelial cells were cultured in vitro.
方法体外培养人脐静脉内皮细胞，通过传代形成细胞的衰老模型。