Published on in Vol 21, No 3 (2019): March
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/11286, first published
.
1 Research Centre for Generational Health and Ageing, Faculty of Health and Medicine, University of Newcastle, Callaghan, Australia
2 Institute for Social Science Research, Faculty of Humanities and Social Sciences, The University of Queensland, Herston, Australia
*these authors contributed equally