Published on in Vol 21, No 4 (2019): April
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/12437, first published
.
1 Medical Big Data Institute, Software School, North University of China, Taiyuan, China
2 Department of Business Information Systems and Operations Research, Belk School of Business, University of North Carolina, Charlotte, NC, United States
*all authors contributed equally