Objective: To explore the anatomical characteristics and the methods to prevent injuries of ureter in laparoscopic total mesorectal excision(LTME).
目的：探讨与腹腔镜全直肠系膜切除术（LTME）有关的左输尿管解剖学特点和保护方法。
Objective To evaluate the application of laparoscopic surgery for total mesorectal excision (TME).
目的探讨腹腔镜外科技术在直肠全系膜切除术（TME）的应用。
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