1. Departments of Anesthesiology, Pain Management and Perioperative Medicine, Dalhousie University, Halifax, NS, Canada
2. Departments of Microbiology and Immunology, Dalhousie University, Halifax, NS, Canada
3. Department of General Surgery, Dalhousie University, Halifax, NS, Canada
4. Department of Pharmacology, Dalhousie University, Halifax, NS, Canada