1. Department of Cardiothoracic and Vascular Surgery, Heart and Lung ClinicUniversity Hospital of North Norway Tromsø Norway
2. Department of Cardiology, Heart and Lung ClinicUniversity Hospital of North Norway Tromsø Norway
3. Division of Surgical Medicine and Intensive Care, Clinic of Emergency Medical ServicesUniversity Hospital of North Norway Tromsø Norway
4. Institute of Clinical MedicineUniversity of Tromsø, The Arctic University of Norway Tromsø Norway