Published on in Vol 6, No 11 (2019): November
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/12942, first published
.
1 Department of Primary Care and Public Health, Brighton and Sussex Medical School, Brighton, United Kingdom
2 Department of Informatics, King's College London, London, United Kingdom
3 School of Population, Health and Environmental Sciences, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom