1. Department of Gastrointestinal Surgery University Hospital North Norway Tromsø Norway
2. Department of Traumatology Oslo University Hospital Ullevål Oslo Norway
3. Department of Gastrointestinal Surgery Haukeland University Hospital Bergen Norway
4. Department of Traumatology St. Olav Hospital Trondheim Norway
5. Norwegian National Advisory Unit on Trauma Division of Emergencies and Critical Care Oslo University Hospital Oslo Norway
6. Anaesthesia and Critical Care Research Group Faculty of Health Sciences University of Tromsø Tromsø Norway