Kim A Boggess1, Erica K Berggren2. 1. Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, University of North Carolina at Chapel Hill, NC. 2. Case Western Reserve University/MetroHealth Medical Center, Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, Case Western Reserve University/MetroHealth Medical Center, Cleveland, OH.