1. Department of Gastroenterology Renmin Hospital of Wuhan University Wuhan China
2. Hubei Provincial Clinical Research Center for Digestive Disease Minimally Invasive Incision Renmin Hospital of Wuhan University Wuhan China
3. Key Laboratory of Hubei Province for Digestive System Disease Renmin Hospital of Wuhan University Wuhan China
4. Department of Gastroenterology Shenzhen Hospital of Southern Medical University Shenzhen China
5. Department of Gastroenterology The First Hospital of Yichang Yichang China