1. Faculty of Health and Life Sciences Linnaeus University Kalmar/Växjö Sweden
2. Division of Emergency Medical Services Kalmar County Council Kalmar Sweden
3. Department of Surgical Sciences Anaesthesiology and Intensive Care Akademiska Hospital Uppsala University Uppsala Sweden
4. Department of Medical and Health Sciences Linköping University Linköping Sweden
5. Department of Anaesthesiology and Intensive Care, and Department of Medical and Health Sciences Linköping University Linköping Sweden
6. The Research Section Kalmar County Council Kalmar Sweden
7. Departments of Cardiology and Medical and Health Sciences Linköping University Linköping Sweden