[1] Nationwide Childrens Hosp, Dept Radiol, Columbus, OH USA
[2] Nationwide Childrens Hosp, Div Neurol, Columbus, OH USA
[3] Ohio State Univ, Coll Med, Dept Clin Pediat, Sect Neurol, Columbus, OH 43210 USA
[4] Ohio State Univ, Coll Med, Dept Pediat, Columbus, OH 43210 USA
[5] Steve & Cindy Rasmussen Inst Genom Med, Columbus, OH USA
[6] Ohio State Univ, Coll Med, Dept Neurosci, Columbus, OH 43210 USA