1. Department of Central Laboratory, Guangzhou Panyu Central Hospital, Guangzhou, Guangdong, China
2. Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
3. Department of Rehabilitation Medicine, Guangzhou Panyu Central Hospital, Guangzhou, Guangdong, China
4. Department of General Surgery, Guangzhou Panyu Central Hospital, Guangzhou, Guangdong, China
5. Department of Hepatobiliary Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
6. Department of Gastroenterological Surgery and Hernia Center & Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China