1 Department of Anesthesiology and Critical Care Medicine, Innsbruck Medical University, Anichstrasse 35, 6020 Innsbruck, Austria. Electronic address: gabriel.putzer@uki.at.
2 Department of Anesthesiology and Critical Care Medicine, Innsbruck Medical University, Anichstrasse 35, 6020 Innsbruck, Austria; Institute of Mountain Emergency Medicine at the European Academy, Bolzano, Italy.
3 Institute of Mountain Emergency Medicine at the European Academy, Bolzano, Italy.
4 Department of Anesthesiology and Critical Care Medicine, Innsbruck Medical University, Anichstrasse 35, 6020 Innsbruck, Austria.