1. Department of Medical Oncology University Hospital of Besançon Besançon France
2. Methodology and Quality of Life in Oncology Unit University Hospital of Besançon Besançon France
3. Department of Medical Oncology Hospital of Montbéliard Montbéliard France
4. Department of Gastroenterology University Hospital of Besançon Besançon France
5. INSERM, Unit 1098 University of Franche‐Comté Besançon France
6. EA 3181 University of Franche‐Comté Besançon France