1. Department of Surgery, Location University of Amsterdam, Amsterdam University Medical Center, 1105 Amsterdam, The Netherlands
2. Cancer Center Amsterdam, 1105 Amsterdam, The Netherlands
3. Department of Medical Oncology, Location University of Amsterdam, Amsterdam University Medical Center, 1105 Amsterdam, The Netherlands
4. Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, 3584 Utrecht, The Netherlands
5. Department of Medical Oncology, Isala Oncology Center, 8025 Zwolle, The Netherlands
6. Department of Surgery, Erasmus MC Cancer Institute, 3015 Rotterdam, The Netherlands
7. Department of Medical Oncology, Vall d’Hebron Unveristy Hospital, Vall d’Hebron Institute of Oncology (VHIO), 08035 Barcelona, Spain
8. Digestive Molecular Clinical Oncology Unit, Univeristy of Verona, 37134 Verona, Italy
9. Department of Medical Oncology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
10. Department of Surgery, Regional Academic Cancer Center Utrecht, UMC Utrecht Cancer Center, St. Antonius Hospital Nieuwegein, Utrecht University, 3584 Utrech, The Netherlands