1 Department of Upper Abdominal Diseases, Karolinska University Hospital, Stockholm, Sweden. andrianos.tsekrekos@ki.se.
2 Division of Surgery and Oncology, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden. andrianos.tsekrekos@ki.se.
3 Oncology Department, Skåne University Hospital, Lund, Sweden.
4 Division of Oncology and Therapeutic Pathology, Department of Clinical Sciences, Lund University, Lund, Sweden.
5 Department of Oncology, Sahlgrenska University Hospital, Gothenburg, Sweden.
6 Department of Upper Abdominal Diseases, Karolinska University Hospital, Stockholm, Sweden.
7 Division of Surgery and Oncology, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden.
8 Department of Surgery, Odense University Hospital, Odense, Denmark.