Published on in Vol 22, No 8 (2020): August
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/19028, first published
.
1 Sydney School of Public Health, Faculty of Medicine and Health, University of Sydney, Sydney, Australia
2 National Heart Foundation of Australia, Sydney, Australia
3 National Heart Foundation of Australia, Melbourne, Australia