Affiliation: | 1.Department of Surgery, Vascular Surgery Unit, Stavanger University Hospital, PO Box 8100, 4068, Stavanger, Norway ;2.Department of Gastrointestinal Surgery, Stavanger University Hospital, Stavanger, Norway ;3.Department of Clinical Medicine, University of Bergen, Bergen, Norway ;4.Research Department, Stavanger University Hospital, Stavanger, Norway ;5.Department of Mathematics and Physics, University of Stavanger, Stavanger, Norway ;6.Department of Clinical Science, University of Bergen, Bergen, Norway ; |