1 Department of Emergency Medicine, University of British Columbia, Diamond Health Care Center 11th floor, 2775 Laurel Street, Vancouver, BC, V5Z 1M9, Canada. lulu.yang@alumni.ubc.ca.
2 Department of Emergency Medicine, University of British Columbia, Diamond Health Care Center 11th floor, 2775 Laurel Street, Vancouver, BC, V5Z 1M9, Canada.