1. Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, China
2. Key Laboratory of Hubei Province for Digestive System Disease, Renmin Hospital of Wuhan University, Wuhan, China
3. Hubei Provincial Clinical Research Center for Digestive Disease Minimally Invasive Incision, Renmin Hospital of Wuhan University, Wuhan, China
4. Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
5. Department of Gastroenterology, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
6. Department of Gastroenterology, The People’s Hospital of China Three Gorges University/The First People’s Hospital of Yichang, Yichang, China
7. Department of Gastroenterology, Yichang Central People’s Hospital, China Three Gorges University, Yichang, China
8. Department of Pathology, Renmin Hospital of Wuhan University, Wuhan, China
9. Department of Gastroenterology, Jilin People’s Hospital, Jilin, China
10. School of Geography and Information Engineering, China University of Geosciences, Wuhan, China
11. Department of Pathology, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China