1. Department of Oncology University of Alberta Edmonton Canada
2. Department of Clinical Nutrition and Gastroenterology Institute of Cancer Montpellier Montpellier France
3. Department of Gastroenterology University Hospital Montpellier France Montpellier France
4. Biometrics Unit – CTD INCa Institut régional du Cancer de Montpellier (ICM) Montpellier France
5. SIRIC Montpellier Cancer Institut régional du Cancer de Montpellier (ICM) Montpellier France