Published on in Vol 8, No 5 (2022): May
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/31847, first published
.
1 School of Public Health, Zhejiang University School of Medicine, Hangzhou, China
2 Shenzhen Pingshan District Center for Disease Control and Prevention, Hangzhou, China
3 Hangzhou Center for Disease Control and Prevention, Hangzhou, China