1. Department of Pediatrics, University of British Columbia; British Columbia Injury Research & Prevention Unit, British Columbia Children’s Hospital, Vancouver, BC, Canada
2. Department of Pediatrics, University of British Columbia; School of Population and Public Health, University of British Columbia; British Columbia Injury Research & Prevention Unit, British Columbia Children’s Hospital, Vancouver, BC, Canada
3. School of Population and Public Health, British Columbia Children’s Hospital, University of British Columbia, Vancouver, BC, Canada