英语语法分析

Therefore, the choledochojejunostomy should be taken cautiously and strictly.

因此，应该严格和谨慎使用胆肠吻合术。

Objective: To study the operative design, safety evaluation and feasibility of modified gasless laparoscopic choledochojejunostomy (MGLCJS).

目的：研究改良非气腹腹腔镜胆总管空肠吻合术（MGLCJS）的手术设计及其安全性与可行性。