1. Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital of Giessen and Marburg, Giessen, Germany
2. Department of Anaesthesiology and Intensive Care Medicine, Bundeswehr Central Hospital Koblenz, Koblenz, Germany
3. Department of Anaesthesiology and Intensive Care Medicine, Lukas Hospital Rheinland Clinic Neuss GmbH, Neuss, Germany
4. Department of Anaesthesiology and Intensive Care Medicine, Heidelberg University Hospital, Heidelberg, Germany
5. Department of Anaesthesiology, Intensive Care Medicine, Emergency Medicine, Vidia St. Vincentius-Clinic Karlsruhe gAG, Karlsruhe, Germany