1 Department of Emergency Medicine, Department of Pediatrics, McGill University, McGill University Health Center, Montréal, QC, Canada. Joe.nemeth@mcgill.ca.
2 Division of Emergency Medicine, Department of Medicine, University of Toronto, St- Michael's Hospital, Toronto, ON, Canada.
3 Department of Emergency Medicine, McGill University, McGill University Health Center, Montréal, QC, Canada.