1. Department of Surgical and Perioperative Sciences, Surgery, Umeå University, Umeå, Sweden
2. Department of Surgical and Perioperative Sciences, Surgery, Umeå University, Umeå, Sweden Wallenberg Centre for Molecular Medicine, Umeå University, Umeå, Sweden
3. Department of Radiation Sciences, Diagnostic Radiology, Umeå University, Umeå, Sweden
4. Umeå University Hospital Kirurgcentrum By 10A SE-901 85 Umeå Sweden
5. Department of Surgical and Perioperative Sciences, Surgery Umeå University Umeå Sweden
6. Wallenberg Centre for Molecular Medicine Umeå University Umeå Sweden