腹腔镜辅助改良原位肛门成形术在超低位直肠癌保肛术中的临床应用
복강경보조개량원위항문성형술재초저위직장암보항술중적림상응용
Laparoscopic assisted modified in situ anal plasty in anus preserving operation for low rectal cancer in clinical application
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