Published on in Vol 6, No 4 (2018): April
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/9661, first published
.
1 Institute for Reproductive Health at Georgetown University, Washington, DC, United States
2 Department of Obstetrics & Gynecology, University of Utah, Salt Lake City, UT, United States
*these authors contributed equally