Published on in Vol 5 , No 2 (2021) :Jul-Dec
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/31056, first published
.

1 School of Public Health, Faculty of Medicine and Health, University of Sydney, Sydney, AU
2 National Heart Foundation of Australia, Brisbane, AU
3 School of Public Health, Faculty of Medicine, University of Queensland, Brisbane, AU