1. Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
2. Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, China
3. Department of Medical Oncology, the First People's Hospital of Yunnan Province, Kunming University of Science and Technology, Kunming, 650032, China
4. Department of Rheumatism, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China