1 Guangdong Institute of Gastroenterology, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Department of Colorectal Surgery, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China.
2 Jingzhou Hospital of Traditional Chinese Medicine, Jingzhou, China.
3 Department of Critical Care Medicine, Dongguan Institute of Respiratory and Critical Care Medicine, Dongguan People's Hospital, Dongguan, China.
4 Guangdong Institute of Gastroenterology, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Department of Colorectal Surgery, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China; School of Medicine, Sun Yat-Sen University, Shenzhen, China.
5 Department of Bioinformatics, Putuo People's Hospital, Tongji University, Shanghai, China.
6 Guangdong Institute of Gastroenterology, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Department of Colorectal Surgery, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China; School of Medicine, Sun Yat-Sen University, Shenzhen, China. Electronic address: lanping@mail.sysu.edu.cn.