Someday, they say, the new procedure may be an alternative for the kind of lower-risk patients who now have to have their chests opened to replace diseased aortic valves.

他们说，有一天，对于现在必须开胸更换病变的脉瓣的低风险患者，这一新的过程可能是一种替换选择。

youdao

Someday, they say, the new procedure may be an alternative for the kind of lower-risk patients who now have to have their chests opened to replace diseased aortic valves.

他们说，有一天，对于现在必须开胸更换病变的脉瓣的低风险患者，这一新的过程可能是一种替换选择。

youdao