Huazhong University of Science and Technology - Department of Gastroenterology, Huazhong University of Science and Technology - Division of Gastroenterology, Huazhong University of Science and Technology - Department of Integrated Traditional Chinese and Western Medicine, Jin Yin-tan Hospital - Department of Infectious Disease, Huazhong University of Science and Technology - Department of Infectious Diseases, Huazhong University of Science and Technology - Department of Gastroenterology, Zhengzhou University - Medical College, Huazhong University of Science and Technology - Department of Gastroenterology, Huazhong University of Science and Technology - Department of Gastroenterology, Huazhong University of Science and Technology - Department of Gastroenterology, Huazhong University of Science and Technology - Division of Gastroenterology, Huazhong University of Science and Technology - Division of Gastroenterology, Huazhong University of Science and Technology - Division of Gastroenterology, Huazhong University of Science and Technology - Division of Gastroenterology and Huazhong University of Science and Technology - Division of Gastroenterology