肿瘤特异系膜切除术与全系膜切除术治疗中上段直肠癌的疗效分析
종류특이계막절제술여전계막절제술치료중상단직장암적료효분석
Curative effects comparison of tumor-sepecific mesorectal excision and total mesorectal excision in the treatment of upper middle section of rectal cancer
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