[1] Brigham & Womens Hosp, Harvard Med Sch, Dept Obstet & Gynecol, Div Maternal Fetal Med, 75 Francis St, Boston, MA 02115 USA
[2] Stanford Univ, Dept Obstet & Gynecol, Div Maternal Fetal Med, Palo Alto, CA 94304 USA
[3] Johns Hopkins All Childrens Hosp, Dept Pediat, Div Newborn Med, St Petersburg, FL USA
[4] Emmes, Washington, DC USA
[5] Univ Southern Calif, Dept Obstet Gynecol, Los Angeles, CA 90007 USA
[6] Northwestern Univ, Div Maternal Fetal Med, Dept Obstet & Gynecol, Chicago, IL 60611 USA
[7] Emory Univ, Div Maternal Fetal Med, Dept Obstet & Gynecol, Atlanta, GA 30322 USA
[8] Minnesota Epilepsy Grp, Dept Obstet Gynecol, St Paul, MN USA
[9] Univ Cincinnati, Dept Obstet Gynecol, Cincinnati, OH USA
[10] Wake Forest Univ, Dept Obstet Gynecol, Winston Salem, NC 27101 USA
[11] Univ Pittsburgh, Sch Med, Dept Neurol, Pittsburgh, PA 15261 USA
[12] Stanford Univ, Dept Neurol, Stanford, CA 94305 USA