目的：评估利用国产球囊导管行经皮二尖瓣成形术治疗风湿性二尖瓣狭窄的疗效。
Purpose: To evaluate the effect of mitral valve stenosis treated by percutaneous balloon mitral valvuloplasty (PBMV) with domestic balloon.
目的：评估利用国产球囊导管行经皮二尖瓣成形术治疗风湿性二尖瓣狭窄的疗效。
Purpose: To evaluate the effect of mitral valve stenosis treated by percutaneous balloon mitral valvuloplasty (PBMV) with domestic balloon.
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