1 The Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada. Electronic address: n.bandara@alumni.ubc.ca.
2 Department of Emergency Medicine, Faculty of Medicine, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada; Vancouver General Hospital, Vancouver, BC, Canada; Centre for Clinical Epidemiology and Evaluation, Vancouver, BC, Canada.