1. Gastroenterology/Digestive OncologyUniversity Hospitals Gasthuisberg/Leuven & KULeuvenLeuven Belgium
2. Centro Nacional Investigaciones Oncologicas, MadridSpain and START MadridMadrid Spain
3. Service d'Oncologie‐HématologieGrand Hopital de CharleroiCharleroi Belgium
4. Gastrointestinal Cancer Unit, Oncology DepartmentVall d'Hebron University Hospital and Institute of OncologyBarcelona Spain
5. Department of Clinical Pharmacology and Chemotherapy, N.N. Blokhin Russian Cancer Research Centerand I.M. Sechenov First Moscow State Medical UniversityMoscow Russia
6. Clinic for Gastroenterology and HepatologyMilitary Medical Academy of SerbiaBelgrade Serbia
7. First Surgical Clinic, Clinical Center of SerbiaFaculty of Medicine, University of BelgradeBelgrade Serbia
8. Medical Oncology DépartementSaint Joseph HospitalParis France
9. HM Universitario Sanchinarro, Centro Integral Oncológico Clara Campal (HM-CIOCC), and Departamento de Ciencias Médicas ClínicasUniversidad CEU San PabloMadrid Spain
10. BiostatisticsMerck KGaADarmstadt Germany
11. Clinical Oncology Early DevelopmentEMD SeronoBillerica MA
12. Digestive Oncology UnitHôpital BeaujonClichy France