Evaluation of Refractory epilepsy Treated with Vagus Nerve Stimulation for Up to 5 YearsNeurol 52:1265-1267,1117, Ben-Menachem,E.,et al, 1999
Epilepsies of Infancy & ChildhoodAnn Neurol 13:113-124, Gomez,M.R.,et al, 1983