1. Mountain Rescue Service, Austria
2. Department of Anaesthesiology and Intensive Care Medicine, Hospital Scheibbs, Scheibbs, Austria
3. Department of Anaesthesiology and Intensive Care Medicine, Hospital Vöcklabruck, Vöcklabruck, Austria
4. Department of Anaesthesiology and Intensive Care Medicine, Medical University of Graz, Graz, Austria
5. Department of Paediatrics, Hospital Lienz, Lienz, Austria
6. Department of Anaesthesiology, Emergency and Intensive Care Medicine and Karl Landsteiner Institute of Emergency Medicine, General Hospital of Wiener Neustadt, Wiener Neustadt, Austria
7. Department of Emergency Medicine, Medical University of Vienna, Vienna, Austria