[1] Univ South Carolina, Neurol, Charleston, SC USA
[2] Emory Univ, Sch Med, Neuroradiol, Atlanta, GA 30322 USA
[3] Emory Univ, Sch Med, Neurol, Atlanta, GA 30322 USA
[4] Emory Univ, Sch Med, Neurosurg, Atlanta, GA 30322 USA
[5] Emory Univ, Sch Med, Pediat, Atlanta, GA 30322 USA
[6] Univ Oxford, fMRIB Nuffield Dept Clin Neurosci, Oxford, England
[7] Emory Univ, Pediat, Atlanta, GA 30322 USA
[8] Univ Washington, Sch Med, Neurol, Seattle, WA 98195 USA