1. Department of Medicine, University of Melbourne, Parkville, VIC 3050, Australia
2. GenesisCare, Leabrook, SA 5068, Australia
3. School of Public Health, Curtin University, Perth, WA 6845, Australia
4. Adelaide Med School, Adelaide, SA 5000, Australia
5. Cardiology Department, Friendly Society Private Hospital, Bundaberg, QLD 4670, Australia
6. North Shore Cardiology, St Leonards, NSW 2065, Australia