Postoperative cardiovascular complications of the 2 groups were compared with Chi-square test.

分析这两组患者的术后心血管并发症，然后进行卡方检验。

youdao

Postoperative cardiovascular complications of the 2 groups were compared with Chi-square test.

分析这两组患者的术后心血管并发症，然后进行卡方检验。

youdao