1 Department of Anesthesia, St. Paul's Hospital/Providence Health Care, Vancouver, BC, Canada; Department of Anesthesiology, Pharmacology & Therapeutics, Faculty of Medicine, The University of British Columbia, Vancouver, BC, Canada; Department of Anesthesia, Pain Management & Perioperative Medicine, Dalhousie University, Halifax, NS, Canada. Electronic address: janny.ke@ubc.ca.
2 Department of Anesthesia, St. Paul's Hospital/Providence Health Care, Vancouver, BC, Canada; Department of Anesthesiology, Pharmacology & Therapeutics, Faculty of Medicine, The University of British Columbia, Vancouver, BC, Canada.