1 Kolling Institute, Sydney Medical School (Northern), Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia; Department of Cardiology, Royal North Shore Hospital, Sydney, NSW, Australia. Electronic address: gemma.figtree@sydney.edu.au.
2 Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia; National Heart Foundation of Austrlaia, Canberra, ACT, Australia; Sydney Health Partners, Sydney Medical School, University of Sydney, Sydney, NSW, Australia.
3 Department of Medicine, Monash University, Melbourne, Vic, Australia.
4 Victor Chang Cardiac Research Institute, Darlinghurst, Sydney, NSW, Australia.