1 Department of Gastrointestinal and Hepatopancreatobiliary Surgery, University Hospital Northern Norway and Institute of Clinical Medicine, Arctic University of Norway, Tromsø, Norway.
2 Department of Surgery, Maastricht University Medical Centre, Euregional Hepatopancreatobiliary Collaboration Aachen-Maastricht, NUTRIM School for Nutrition, Toxicology and Metabolism and GROW School for Oncology and Developmental Biology, AZ Maastricht, The Netherlands.
3 Department of Gastrointestinal and HepatoPancreatoBiliary Surgery, University Hospital Northern Norway and Institute of Clinical Medicine, Arctic University of Norway, Tromsø, Norway.
4 Department of Clinical and Surgical Sciences, University of Edinburgh, Edinburgh, United Kingdom.
5 Gastrointestinal Surgery, Nottingham Digestive Diseases Centre, Nottingham University Hospitals, Queen's Medical Centre, Nottingham, United Kingdom.
6 Department of Surgery, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.