1. Department of Gastroenterology, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China;
2. Medical College of Nanchang University, Nanchang, Jiangxi, China;
3. Queen Mary School, Medical College of Nanchang University, Nanchang, Jiangxi, China;
4. Gastroenterology Institute of Jiangxi Province, Nanchang, Jiangxi, China;
5. Key Laboratory of Digestive Diseases of Jiangxi Province, Nanchang, Jiangxi, China