1. Department of Upper Abdominal Diseases, Karolinska University Hospital, Stockholm, Sweden
2. Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
3. Department of Clinical Science, Intervention, and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden
4. Department of Abdominal Radiology, Karolinska University Hospital, Stockholm, Sweden
5. Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
6. Department of Pathology, Karolinska University Hospital, Stockholm, Sweden
7. Department of Pathology, University of Oslo, Oslo, Norway