Published on in Vol 22, No 4 (2020): April
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/16541, first published
.
1 Department of Obstetrics and Gynecology, University of California, Los Angeles, CA, United States
2 Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, MetroHealth Medical Center, University Hospital Cleveland Medical Center, Cleveland, OH, United States