Published on in Vol 20, No 6 (2018): June
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/9225, first published
.
1 HealthCore, Inc., Wilmington, DE, United States
2 Stanford Patient Education Research Center, Palo Alto, CA, United States
3 National Council on Aging- Services, Arlington, VA, United States