1. Center for Surgical Science Zealand University Hospital Koege Denmark
2. Department of Anesthesiology and Intensive Care Hvidovre Hospital Hvidovre Denmark
3. Department of Clinical Research and the Emergency Department Hvidovre Hospital Hvidovre Denmark
4. Department of Surgery Bispebjerg and Frederiksberg Hospital Copenhagen Denmark
5. Department of Surgical Gastroenterology 360 Hvidovre Hospital Hvidovre Denmark
6. Department of Surgery Zealand University Hospital Koege Denmark