Methods: 190 SD rats were performed segmental heterotopic small intestinal transplantation with microsurgical technique.

• 方法：190只SD大鼠施行异位节段性小肠移植，手术显微镜下门静脉-下腔静脉端侧吻合、腹主动脉端侧吻合建立同种异体大鼠节段性小肠移植模型；