1. Department of Cardiology, Alfred Health, Melbourne, Victoria, Australia
2. Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
3. Department of Cardiology, Western Health, St Albans, Victoria, Australia
4. Ambulance Victoria, Blackburn, Victoria, Australia
5. School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
6. Department of Paramedicine, Monash University, Frankston, Victoria, Australia