TY - JOURNAL OF CLINICAL SURGERY A1 - QIN Chuanhui, ZHAO Qisheng, YANG Guiyi, et al. T1 - Clinical application of laparoscopic colorectal tumor surgery through natural orifice specimen extraction Y1 - 2020-07-20 JF - JOURNAL OF CLINICAL SURGERY JO - JOURNAL OF CLINICAL SURGERY SP - 658 EP - 661 VL - 28 IS - 7 UR - http://www.lcwkzz.com N1 - 10.3969/j.issn.1005-6483.2020.07.017 ER -