Published on in Vol 7, No 11 (2020): November
This is a member publication of Kaiser Permanente Northern California, Division of Research, Oakland, California, USA [waivers require approval by Nancy Gordon]
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/17405, first published
.
1 Kaiser Permanente Northern California, Division of Research, Oakland, CA, United States