Published on in Vol 4, No 1 (2021): Jan-Jun
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/25661, first published
.
1 Department of Pediatrics, University of Wisconsin-Madison, Madison, WI, United States
2 Department of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, United States