1. Department of Forensic Medicine, Monash University, Melbourne, Australia;
2. Department of Community Emergency Health and Paramedic Practice, Monash University, Melbourne, Australia;
3. Centre for Research and Evaluation, Ambulance Victoria, Melbourne, Australia;
4. Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia;
5. Victorian Institute of Forensic Medicine, Melbourne, Australia