1. Department of Radiotherapy, University of Bourgogne Franche-Comté, CHU Besançon, 25030 Besançon
2. Department of Radiology, University of Bourgogne Franche-Comté, CHU Besançon, 25030 Besançon
3. Methodology and Quality of Life Unit in Oncology, CHU Besançon, 25030 Besançon
4. Department of Gastroenteroly, University of Bourgogne Franche-Comté, CHU Besançon, 25030 Besançon
5. Department of Digestive surgery, University of Bourgogne Franche-Comté, CHU Besançon, 25030 Besançon
6. Department of Oncology, University of Bourgogne Franche-Comté, CHU Besançon, 25030 Besançon