Published on in Vol 22, No 8 (2020): August
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/19512, first published
.
1 Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
2 Big Data & AI Lab, Hana Institute of Technology, Hana TI, Seoul, Republic of Korea