1 Division of Emergency Medicine, Department of Medicine, McMaster University, Hamilton, ON, Canada.
2 Division of Emergency Medicine, Department of Medicine, McMaster University, Hamilton, ON, Canada. sameer.sharif@medportal.ca.
3 Division of Critical Care, Department of Medicine, McMaster University, Hamilton, ON, Canada. sameer.sharif@medportal.ca.
4 Division of Emergency Medicine and Critical Care, Department of Medicine, Hamilton General Hospital, McMaster University, 237 Barton St East, 2nd Floor McMaster Wing, Room 252, Hamilton, L8L 2X2, ON, Canada. sameer.sharif@medportal.ca.
5 Division of Critical Care, Department of Medicine, McMaster University, Hamilton, ON, Canada.
6 Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, ON, Canada.