1. Department of Anesthesiology and Intensive Care Medicine, University Hospital of Bonn, Bonn, North Rhine-Westphalia, Germany;
2. Asklepios Paulinen Klinik Wiesbaden, Wiesbaden, Hessen, Germany;
3. Druckkammerzentrum RMT GmbH, Wiesbaden, Hessen, Germany;
4. Department of Anesthesiology, Hanover Medical School, Hannover, Niedersachsen, Germany;
5. Department of Sports Medicine, University of Tübingen, Tübingen, Baden-Württemberg, Germany