Published on in Vol 4, No 5 (2020): May
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/15815, first published
.
1 Rush University Medical Center, Chicago, IL, United States
2 Department of Rheumatology, General University Hospital Gregorio Marañón, Madrid, Spain
3 ZiteLab ApS, Copenhagen, Denmark