Published on in Vol 8, No 3 (2020): March
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/17110, first published
.
1 Department of Family Medicine, Taipei Medical University Hospital, Taipei, Taiwan
2 Department of Family Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
*these authors contributed equally