1 Faculty of Health Sciences, Department of Family Medicine, Division of Emergency Medicine, McMaster University, Waterloo Regional Campus, Kitchener, ON, Canada. tongxx@mcmaster.ca.
2 Faculty of Health Sciences, Department of Family Medicine, Division of Emergency Medicine, McMaster University, Hamilton, ON, Canada.
3 Faculty of Health Sciences, Department of Family Medicine, McMaster University, Hamilton, ON, Canada.
4 Faculty of Health Sciences, McMaster Education Research, Innovation, and Theory, McMaster University, Hamilton, ON, Canada.