1. Department of Colorectal Surgery Fudan University Shanghai Cancer Center Fudan University Shanghai 200032 P. R. China
2. Department of Oncology Shanghai Medical College Fudan University Shanghai 200032 P. R. China
3. Institute of Radiation Medicine Shanghai Medical College Fudan University Shanghai 200032 P. R. China
4. Cancer Institute Fudan University Shanghai Cancer Center Shanghai 200032 P. R. China
5. Research and Early Development D1Med Technology (Shanghai) Inc Shanghai 200235 P. R. China
6. Department of Radiation Oncology Fudan University Shanghai Cancer Center Fudan University Shanghai 200032 P. R. China
7. Department of Pathology Fudan University Shanghai Cancer Center Shanghai 200032 P. R. China
8. Department of Radiology Fudan University Shanghai Cancer Center Shanghai 200032 P. R. China
9. Sidney Kimmel Comprehensive Cancer Center Johns Hopkins University School of Medicine Baltimore MD 21218 USA
10. Hubrecht Institute KNAW and University Medical Center Utrecht P.O. Box 85500 Utrecht 3584 CT The Netherlands