∗Certified Genetic Counselor, Division of Maternal Fetal Medicine

†Resident Physician, Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, TN

‡Associate Professor, Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of North Carolina School of Medicine, Chapel Hill, NC

§Professor, Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Duke University School of Medicine, Durham, NC

¶Assistant Professor, Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, TN

All authors, faculty, and staff have no relevant financial relationships with any ineligible organizations regarding this educational activity.

Correspondence requests to: Matthew R. Grace, MD, Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, 1161 21st Ave South C-1120 MCN, Nashville, TN 37232. E-mail: [email protected].