1. Sixth Health Care Department, Second Medical Center of PLA General Hospital, Beijing, China
2. Department of Gastroenterology and Hepatology, Hainan Hospital of PLA General Hospital, Sanya, Hainan, China
3. Beijing QuantiHealth Technology Co., Ltd., Beijing, China
4. Department of Gastroenterology and Hepatology, First Medical Center of PLA General Hospital, Beijing, China