1. Department of Gastroenterology, the Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, 213000, China
2. Department of Radiotherapy, Changzhou Tumor Hospital, Changzhou, China
3. Department of Pathology
4. Department of Biomedical Engineering
5. Department of Radiotherapy, the Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213000, China