1. Department of Gastroenterology, The Second Affiliated Hospital, Xi’an Jiaotong University, Xi’an 710049, China
2. Bioinspired Engineering and Biomechanics Center (BEBC), Xi’an Jiaotong University, Xi’an 710049, China
3. National Clinical Research Center for Digestive Diseases, State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, Air Force Medical University, Xi’an 710032, China