1. Department of Surgery, Erasmus University, Rotterdam, the Netherlands
2. Division of Medical Oncology, Mayo Clinic, Rochester, MN, USA
3. Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
4. Department of Clinical Science, University of Bergen, and Department of Oncology, Haukeland University Hospital, Bergen, Norway
5. Department of General Surgery, Medical University of Graz, Graz, Austria
6. Department of General Surgery, Digestive Disease Institute, Cleveland Clinic, Cleveland, Ohio, USA
7. Department of Pathology, Medical University of Vienna, Vienna, Austria
8. Department of General and Visceral Surgery, Charité Campus Benjamin Franklin, Berlin, Germany
9. Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan
10. Department of General Surgery, Medical University of Vienna, Vienna, Austria
11. Department of Surgery, Ohio State University Wexner Medical Center, Columbus, Ohio, USA
12. Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
13. Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
14. Department of Surgery, Zucker School of Medicine at Hofstra, Northwell Health Cancer Institute, Lake Success, New York, USA
15. Department of Surgery, New York University School of Medicine, New York, New York, USA
16. Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York, USA