1. Department of GastroenterologyThe First Affiliated Hospital of Soochow University Suzhou China
2. Digestive Endoscopy DepartmentThe First Affiliated Hospital with Nanjing Medical University Nanjing China
3. Department of General SurgeryThe First Affiliated Hospital with Nanjing Medical University Nanjing China
4. Department of GastroenterologyThe Changzhou Second People's Hospital Changzhou China
5. Division of Digestive Diseasesthe People's Hospital of Ma Anshan Ma Anshan China