膝交叉韧带断裂是导致运动员终止运动生涯的常见原因，本文阐述了手术治疗中的材料问题和术后康复方法。
It is expatiated on operation material and rehabilitation of the cruciate rupture of knee, which is the common cause of cessation of sports life for athletes.
当结果和预计的终止界限发生交叉时，北方癌症治疗小组数据安全监测委员会介入了按计划进行的暂时性分析。
The North Central Cancer Treatment Group Data Safety Monitoring Committee interrupted enrollment at a planned interim analysis when outcomes crossed predetermined stopping boundaries.
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