1. Department of Anaesthesiology, Institute of Medical Biostatistics, Epidemiology and Informatics University Medical Centre of the Johannes Gutenberg‐University Mainz Germany
2. Institute of Medical Biostatistics, Epidemiology and Informatics University Medical Centre of the Johannes Gutenberg‐University Mainz Germany
3. Department of Anaesthesia Emergency and Intensive Care Medicine, Klinikum Mutterhaus der Borromäerinnen GmbH Trier Germany
4. Department of Anaesthesiology and Critical Care, Faculty of Medicine, Medical Center ‐ University of Freiburg University of Freiburg im Breisgau Germany
5. Department of Anaesthesia, Intensive Care Medicine and Emergency Medicine Bundeswehrzentralkrankenhaus Koblenz Koblenz Germany