Meta-analysis of the efficacies of laparoscopic intersphincteric resection and laparotomy for ultra low rectal cancer
Zhen Ya′nan, Xiao Ruixue, Xu Huirong, Li Jianning, Shi Huiyong, Xu Zhongfa
Journal of International Oncology . 2016, (1): 17 -22 .  DOI: 10.3760/cma.j.issn.1673-422X.2016.01.005