经腹经骶柱状切除对晚期中低位直肠癌综合治疗后复发和转移的影响
경복경저주상절제대만기중저위직장암종합치료후복발화전이적영향
Influence of Abdominal Sacral Resection of Cylindrical Technology on Recurrence and Metastasis of Advanced Medium-low Rectal Cancer after Comprehensive Treatment