1. Department of Gastroenterology, Zhujiang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
2. School of Basic Medicine, Guizhou Medical University, Guiyang, People’s Republic of China
3. The Second School of Clinical Medicine, Southern Medical University, Guangzhou, People’s Republic of China
4. Department of Pathology, Zhujiang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
5. Department of Emergency, Zhujiang Hospital, Southern Medical University, Guangzhou, People’s Republic of China