Steven L. Bloom, MD, Jack A. Pritchard MD Chair in Obstetrics and Gynecology; Professor and Chair, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center; and Chief of Obstetrics and Gynecology, Parkland Health and Hospital System, Dallas, Texas

Jodi S. Dashe, MD, Professor, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center; and Director of Prenatal Diagnosis, Parkland Health and Hospital System, Dallas, Texas

Barbara L. Hoffman, MD, Professor, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Parkland Health and Hospital System, Dallas, Texas

Brian M. Casey, MD, Professor, Department of Obstetrics and Gynecology; Director, Division of Maternal-Fetal Medicine, University of Texas Southwestern Medical Center; and Chief of Obstetrics, Parkland Health and Hospital System, Dallas, Texas

Catherine Y. Spong, MD, Bethesda, Maryland