1. Department of Gastroenterology, Xinqiao Hospital, Army Medical University, No.183, Xinqiao Street, Shapingba District, Chongqing400037, China
2. Departments of Mechanical Engineering, University of Manitoba, Winnipeg, ManitobaR3T 2N2, Canada
3. Department of Chemical and Biochemical Engineering, and School of Biomedical Engineering, The University of Western Ontario, London, OntarioN6A 5B9, Canada
4. Chongqing Municipality Clinical Research Center for Gastroenterology, Chongqing400037, China