1. Department of Anaesthesia and Intensive Care; Head & Heart Centre; Aarhus University Hospital; Aarhus N Denmark
2. Department of Clinical Medicine; Aarhus University; Aarhus N Denmark
3. Department of Cardiology; Head & Heart Centre; Aarhus University Hospital; Aarhus N Denmark
4. Department of Cardiothoracic and Vascular Surgery; Head & Heart Centre; Aarhus University Hospital; Aarhus N Denmark
5. Danish Air Ambulance; Department of Pre-hospital Medical Services; Aarhus N Denmark