Published on in Vol 22 , No 5 (2020) :May
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/15685, first published
.

1 School of Medicine and Health Management, Huazhong University of Science and Technology, Wuhan, CN
2 Jiangxi Engineering Laboratory on Radioactive Geoscience and Big Data Technology, East China University of Technology, Nanchang, Jiangxi, CN