1. Department of Paramedicine, School of Primary and Allied Health Care, Faculty of Medicine, Nursing, and Health Sciences, Monash University, Melbourne, Victoria, Australia
2. Ambulance Victoria, Doncaster, Victoria, Australia
3. British Columbia Resuscitation Research Collaborative, Vancouver, British Columbia, Canada
4. Monash Addiction Research Centre, Eastern Health Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Victoria, Australia
5. Department of Emergency Medicine, University of British Columbia and St. Paul’s Hospital, Vancouver, British Columbia, Canada
6. Centre for Health Evaluation and Outcome Sciences, Vancouver, British Columbia, Canada
7. British Columbia Emergency Health Services, Vancouver, British Columbia, Canada
8. British Columbia Centre for Disease Control, Vancouver, British Columbia, Canada
9. Faculty of Applied Science, University of British Columbia, Vancouver, British Columbia, Canada
10. School of Population and Public Health, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada