结论儿童心瓣膜手术时，首先选择瓣膜成形术。

Conclusion The valvuloplasty operations are firstly elected in cardiac valve operations of children.

youdao

结论儿童心瓣膜手术时，首先选择瓣膜成形术。

Conclusion The valvuloplasty operations are firstly elected in cardiac valve operations of children.

youdao