1. From the Department of Neurology (A.F.), Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA; Department of Neurology (J.J.M.), Yale School of Medicine, New Haven, CT; Department of Neurology (D.B.H.), Children's National Medical Center, Washington, DC; Department of Neurology (R.M.G.), Washington University School of Medicine and St. Louis Childrens Hospital, MO; Department of Neurology (J.P.), University of Pennsylvania, Philadelphia; Minnesota Epilepsy Group, P.A. (N.A....