Jason Chui1, Alana M Flexman2,3. 1. Department of Anesthesia & Perioperative Medicine, University of Western Ontario, London, ON, Canada. 2. Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, BC, Canada. Alana.flexman@ubc.ca. 3. Department of Anesthesiology, St. Paul's Hospital, 1081 Burrard Street, Vancouver, BC, V6Z 1Y6, Canada. Alana.flexman@ubc.ca.