21mm GK双叶瓣与CarboMedics双叶瓣在主动脉瓣狭窄行瓣膜置换术后的对比研究
21mm GK쌍협판여CarboMedics쌍협판재주동맥판협착행판막치환술후적대비연구
Comparison of the 21mm GK and Carbomedics bileaflet mechanical valve after aortic valve replacement on patients with aortic valve stenosis
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