1. Department of General and Surgical Critical Care Medicine, Medical University of Innsbruck, Innsbruck, Austria.
2. EURAC Research, Institute of Mountain Emergency Medicine, Bolzano, Italy.
3. Department of Anaesthesiology, University Hospital, LMU Munich, Munich, Germany.
4. Department of Emergency Medicine, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland.
5. Department of Anaesthesiology and Intensive Care Medicine, General Public Hospital of the Brothers of St. John of God Salzburg, Paracelsus Medical University, Salzburg, Austria.