Effect of laparoscopic colorectal cancer surgery with natural orifice specimen extraction on the bacterial contamination and dissemination of tumor cells

BU Jun, LI Nian, HE Shan, YUAN Hongjun, DENG Hen⁃ gyi, CHEN Qiong, WU Xiaoting.
The Journal of Practical Medicine . 2021, (22): 2887 -2892 .  DOI: 10.3969/j.issn.1006⁃5725.2021.22.012