1. Department of Pathology; Haukeland University Hospital; Bergen Norway
2. Department of Gastrointestinal Surgery; Haukeland University Hospital; Bergen Norway
3. Institute of Clinical Medicine; University of Oslo; Oslo Norway
4. Department of Pathology; Oslo University Hospital, Rikshospitalet; Oslo Norway
5. Department of Medicine; Stavanger University Hospital; Stavanger Norway
6. Gade Laboratory for Pathology; Department of Clinical Medicine; University of Bergen; Bergen Norway
7. KG Jebsen Center for Diabetes Research; Faculty of Medicine and Dentistry; University of Bergen; Bergen Norway