Gianni R Lorello1, Alana M Flexman2. 1. Staff anesthesiologist, Toronto Western Hospital, University Health Network; assistant professor, Department of Anesthesia, University of Toronto; cross-appointed researcher, The Wilson Centre, Toronto, Ont. 2. Staff anesthesiologist, Vancouver General Hospital; clinical associate professor, Department of Anesthesiology, Pharmacology & Therapeutics, Faculty of Medicine, University of British Columbia, Vancouver, BC.