Published on in Vol 6, No 3 (2018): Jul-Sep
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/9878, first published
.
1 Office of Surveillance and Epidemiology, Center for Drug Evaluation and Research, US Food And Drug Administration, Silver Spring, MD, United States
2 PatientsLikeMe, Cambridge, MA, United States
3 Center for Advanced Evidence Generation Real World Insights, IQVIA, Rockville, MD, United States