1. Department of Anesthesia, Dalhousie University, Halifax, NS, Canada
2. Department of Anesthesia and Intensive Care Medicine, Ernst Moritz Arndt University Greifswald, Germany
3. Department of Pharmacology, University of Cambridge, Cambridge, UK
4. Department of Anesthesiology and Intensive Care Medicine, Faculty of Medicine Hradec Kralove, Charles University Prague, Prague, Czech Republic