Published on in Vol 6, No 3 (2020): Jul-Sep
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/22060, first published
.
1 Margolis Center for Health Policy, Duke University, Durham, NC, United States
2 Center for Health Measurement, Department of Population Health Sciences, Duke University School of Medicine, Durham, NC, United States