1. Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
2. Division of Maternal-Fetal-Medicine, Department of Obstetrics and Gynecology, Stanford University, Palo Alto, California
3. Division of Newborn Medicine, Department of Pediatrics, Johns Hopkins All Children's Hospital, St. Petersburg, Florida
4. Emmes, Washington, District of Columbia
5. Department of Obstetrics-Gynecology, University of Southern California, Los Angeles, California
6. Division of Maternal-Fetal-Medicine, Department of Obstetrics and Gynecology, Northwestern University, Chicago, Illinois
7. Division of Maternal-Fetal-Medicine, Department of Obstetrics and Gynecology, Emory University, Atlanta, Georgia
8. Department of Obstetrics-Gynecology, Minnesota Epilepsy Group, St. Paul, Minnesota
9. Department of Obstetrics-Gynecology, University of Cincinnati, Cincinnati, Ohio
10. Department of Obstetrics-Gynecology, Wake Forest University, Winston-Salem, North Carolina
11. Department of Neurology, Stanford University, Standford, California
12. Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania