Saarland University - Department of Anaesthesiology, Intensive Care and Pain Therapy, Saarland University - Department of Anaesthesiology, Intensive Care and Pain Therapy, HELIOS Klinikum Aue, Klinikum Oldenburg, University Clinic of Anaesthesiology, Intensive Care, Emergency Medicine, Pain Therapy, Schleswig-Holstein University, Department of Anesthesiology and Intensive Care Medicine, Ulm University - Ulm University Hospital, Klinikum Saarbrücken, Department of Anesthesia and Intensive Care, University of Ljubljana - University Medical Centre Ljubljana, Klinikum Weiden, Medical Department, Johannes Gutenberg University Mainz - University Medical Center, Carl-Thiem-Hospital, Department of Anaesthesiology, Intensive Care Medicine and Palliative Care Medicine, University of Lubeck, Department of Anesthesiology and Intensive Care, Emden Hospital, Department of Anaesthesiology and Intensive Care Medicine, Ruhr University of Bochum, Department of Anaesthesiology and Intensive Care Medicine, Ruhr University of Bochum, Department of Anaesthesiology and Intensive Care Medicine and Karolinska Institutet