1. The University of British Columbia; Department of Anesthesiology, Pharmacology & Therapeutics; 3300 - 910 West 10th Avenue Vancouver BC Canada V5Z 4E3
2. McMaster University; Division of Orthopaedic Surgery, Hamilton Health Science-General Hospital; 293 Wellington Street Suite 110 Hamilton Ontario Canada
3. Hamilton Health Sciences; Department of Anaesthesia; 1200 Main Street West Room HSC 2U1 Hamilton ON Canada L8N 3Z5
4. McMaster University and St. Josephs Hospital; Department of Medicine; Room F-538 50 Carlton Avenue East Hamilton Ontario Canada L8N 4A6