1 Division of Maternal Fetal Medicine, Department of Obstetrics & Gynecology, Hackensack Meridian Jersey Shore University Medical Center, Neptune, NJ.
2 Division of Maternal Fetal Medicine, Department of Obstetrics, Gynecology & Women's Health, Saint Louis University School of Medicine, 6420 Clayton Rd, Ste 2800, St. Louis, MO 63117.
3 Division of Maternal Fetal Medicine, Department of Obstetrics, Gynecology & Women's Health, Saint Louis University School of Medicine, 6420 Clayton Rd, Ste 2800, St. Louis, MO 63117. Electronic address: tracy.tomlinson@health.slu.edu.