1. Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515 China
2. Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515 China
3. Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong Province, 510632 China
4. Department of Gastroenterology, First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, Guangdong Province, 510630 China