From the *Department of Anesthesia, Toronto Western Hospital, University of Toronto, Toronto, Canada
†Department of Anaesthesia and Acute Pain Medicine, St Vincent’s Hospital, University of Melbourne, Melbourne, Australia.
Published ahead of print 20 February 2019.
Accepted for publication February 20, 2019.
The authors declare no conflicts of interest.
Reprints will not be available from the authors.
Address correspondence to Ki Jinn Chin, MBBS, FRCPC, Department of Anesthesia, Toronto Western Hospital, 399 Bathurst St, McL 2-405, Toronto, ON M5T 2S8, Canada. Address e-mail to firstname.lastname@example.org.