1 Department of Anaesthesiology and Intensive Care Medicine, Kepler University Hospital and Johannes Kepler University, Krankenhausstrasse 9, Linz, Austria.
2 Medical Faculty, Johannes Kepler University, Linz, Austria.
3 Department of Anaesthesiology and Intensive Care Medicine, Kepler University Hospital and Johannes Kepler University, Krankenhausstrasse 9, Linz, Austria. Martin.Duenser@kepleruniklinikum.at.