1. From the Department of Neurology, University of Cincinnati College of Medicine, Cincinnati, OH, (F.R.R., D.O.K., J.P.B., O.A., M.L.F., P.K., D.W., J.E., S.F., B.M.K.); Division of Biostatistics and Epidemiology, Cincinnati Children’s Hospital, Cincinnati, OH (J.K.); and University of Cincinnati, Cincinnati, OH (C.J.M., K.A.).