Methods: Retrospective study was done on the clinical data from 22 cases with bleeding complications.
方法：回顾分析施行腹腔镜手术过程中发生出血并发症22例的临床资料。
Methods a retrospective study was done on 40 cases with biliary obstruction after orthotopic liver transplantation.
方法回顾性分析40例肝移植术后肝内胆管阻塞患者的资料。
A retrospective study was done of this genealogy to discuss the genetic form and characteristics, and the differential diagnosis.
作者对这个家系进行了回顾性研究，以期探讨该病的遗传方式、特点及鉴别诊断。
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