Published on in Vol 23, No 7 (2021): July
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/26510, first published
.
1 Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
2 Department of Surveillance and Health Equity Science, American Cancer Society, Washington, DC, United States