[1] Michael E DeBakey VA Med Ctr, Houston, TX USA
[2] Baylor Coll Med, Dept Neurol, Houston, TX USA
[3] UT Hlth Houston, Neurosci, McGovern Med Sch, Houston, TX USA
[4] VA Pittsburgh Healthcare Syst, Div Neurol, Pittsburgh, PA USA
[5] Univ Pittsburgh, Dept Neurol, Pittsburgh, PA USA
[6] Vet Hlth Adm, Epilepsy Ctr Excellence, Washington, DC USA
[7] Michael E DeBakey Va Med Ctr, 2002 holcombe Blvd, Houston, TX 77030 USA