结直肠徒手一层缝合吻合与双吻合器技术在低位直肠癌保肛手术中的比较
결직장도수일층봉합문합여쌍문합기기술재저위직장암보항수술중적비교
Application of one-layer manual suturing and double stapling technique in sphincter-reserving operation for low rectal cancer
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