[1] Ohio State Univ, Nationwide Childrens Hosp, Dept Pediat, Div Pediat Neurol, 700 Childrens Dr, Columbus, OH 43205 USA
[2] Washington Univ St Louis, Sch Med, Dept Pediat & Dev Neurol, 660 S Euclid Ave, St Louis, MO 63110 USA
[3] Washington Univ St Louis, Sch Med, Dept Neurol, 660 S Euclid Ave, St Louis, MO 63110 USA