1. Department of Gastrointestinal Surgery The First Affiliated Hospital of Wannan Medical College Wuhu China
2. Department of Hepatobiliary Surgery The First Affiliated Hospital of Wannan Medical College Wuhu China
3. Department of Gastrointestinal Surgery, Suzhou Municipal Hospital Affiliated Suzhou Hospital of Nanjing Medical University Suzhou China
4. Department of Gastroenterology, Suzhou Municipal Hospital Affiliated Suzhou Hospital of Nanjing Medical University Suzhou China
5. Department of Oncology The First Affiliated Hospital of Wannan Medical College Wuhu China