1. Division of Colorectal & Anal Surgery, Department of Gastrointestinal Surgery, Guangxi Medical University Cancer Hospital, Nanning, The People’s Republic of China
2. Guangxi Clinical Research Center for Colorectal Cancer, Nanning, The People’s Republic of China
3. 2nd Department of General Surgery, Zhuzhou Hospital Affiliated to Xiangya School of Medicine, Hunan, The People’s Republic of China