1. Department of Emergency Medicine and Prehospital Services, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
2. Department of Anaesthesia and Intensive Care, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
3. Department of Cardiothoracic Anaesthesia, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
4. Department of Gynecology and Obstetrics, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
5. Air Ambulance Department, Oslo University Hospital, Oslo, Norway