[1] Univ Kansas, Med Ctr, Kansas City, KS 66103 USA
[2] Dept Neurol, Kansas City, KS USA
[3] Univ Kansas, Med Ctr, Neurol, Kansas City, MO USA
[4] Univ Kansas, Med Ctr, Neurol, Kansas City, KS 66103 USA
[5] Med Coll Georgia, Dept Neurol, Augusta, GA 30912 USA
[6] Case Western Reserve Univ, Neurol, Cleveland, OH 44106 USA
[7] Augusta Univ, Neurol, Augusta, GA USA