1 Department of Colorectal Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, People's Republic of China.
2 Department of General Surgery, Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Cancer, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China.
3 Department of Colorectal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangdong Institute of Gastroenterology, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangzhou, People's Republic of China.
4 Department of Colorectal Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, People's Republic of China. jiangweinf@163.com.
5 Department of General Surgery, Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Cancer, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China. jiangweinf@163.com.
6 Department of Colorectal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangdong Institute of Gastroenterology, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangzhou, People's Republic of China. wang89@mail.sysu.edu.cn.
7 Department of Colorectal Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, People's Republic of China. yanjunfudan@163.com.
8 Department of General Surgery, Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Cancer, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China. yanjunfudan@163.com.