1. Department of Anaesthesia, Dalhousie University, Halifax, Nova Scotia, Canada
2. Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada
3. Department of Anesthesiology and Intensive Care Medicine, Charles University Prague, Faculty of Medicine Hradec Kralove, University Hospital Hradec Kralove, Czech Republic
4. Department of Pharmacology, Dalhousie University, Halifax, Nova Scotia, Canada