1 Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, No. 95, Yong-An Road, Xi Cheng District, Beijing, 100050, China.
2 State Key Laboratory of Digestive Health, Beijing, 100050, China.
3 National Clinical Research Center for Digestive Diseases, Beijing, 100050, China.
4 Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, No. 95, Yong-An Road, Xi Cheng District, Beijing, 100050, China. [email protected].
5 State Key Laboratory of Digestive Health, Beijing, 100050, China. [email protected].
6 National Clinical Research Center for Digestive Diseases, Beijing, 100050, China. [email protected].