1. Department of Surgery, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
2. Surgical Outcomes Analysis and Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
3. Department of Pathology, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
4. Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
5. Department of Surgery, Pancreas Institute, Verona University Hospital, Verona, Italy
6. Department of Surgery, Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts
7. Department of Surgery, Southampton University Hospital National Health Service Foundation Trust, Southampton, United Kingdom
8. Department of Surgery, Erasmus MC, Rotterdam, the Netherlands