encircling constriction of venous wall
...瓣膜外戴戒术；瓣膜外修补术；腘静脉半腱肌-股二头肌肌襻代瓣膜术 [gap=1590]key words】 primary deep venous insufficiency；encircling constriction of venous wall；surgical repair outside the incompetent valve；semitendinosus-biceps femoris sub..
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