1. Clinical Epilepsy Section; National Institute of Neurological Disorders and Stroke; Bethesda Maryland
2. Berman Brain & Spine Institute; Baltimore Maryland
3. Department of Neurology; Children's National Medical Center; Washington District of Columbia
4. Surgical Neurology Branch; National Institute of Neurological Disorders and Stroke; Bethesda Maryland
5. Electroencephalography Section; National Institute of Neurological Disorders and Stroke; Bethesda Maryland