Published on in Vol 21, No 8 (2019): August
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/13477, first published
.
1 Centre for Epidemiology Versus Arthritis, Manchester Academic Health Science Centre, The University of Manchester, Manchester, United Kingdom
2 HealthUnlocked (Everything Unlocked Ltd), London, United Kingdom
3 NIHR Manchester Biomedical Research Centre, Manchester University NHS Foundation Trust, Manchester, United Kingdom