Published on in Vol 22, No 7 (2020): July
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/18697, first published
.
1 Dalian University of Technology, Dalian, China
2 Dongbei University of Finance and Economics, Dalian, China
3 Beijing Haoyisheng Cloud Hospital Management Technology Ltd, Beijing, China