1 Department of Surgery, University of Manitoba, Winnipeg, MB, Canada. Electronic address: gillmanlm@yahoo.ca.
2 Division of Critical Care Medicine, University of Alberta, Edmonton, AB, Canada. Electronic address: brindley@ualberta.ca.
3 Department of Emergency Medicine, University of South Carolina School of Medicine, Columbia, SC, USA. Electronic address: mike@blaivas.org.
4 Department of Surgery, University of Alberta, Edmonton, AB, Canada. Electronic address: sandy.widder2@albertahealthservices.ca.
5 Department of Internal Medicine, University of South Carolina School of Medicine, Columbia, SC, USA. Electronic address: karakitsosdimitrios@gmail.com.