Data availability
Data will be made available on request.
Data will be made available on request.
We thank our participating families and participating Obstetrics/Gynecology clinics that facilitated recruitment. This research was supported by award number R15HD071431 from the National Institute of Child Health and Human Development. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institute of Child Health and Human Development or the National Institutes of Health.