1. Department of Neurosurgery Columbia University Medical Center New York Presbyterian Hospital New York New York U.S.A
2. Department of Neurosurgery Massachusetts General Hospital Harvard Medical School Boston Massachusetts U.S.A
3. Division of Epilepsy Department of Neurology Beth Israel Deaconess Medical Center Harvard Medical School Boston Massachusetts U.S.A
4. Department of Neurology Emory University School of Medicine Atlanta Georgia U.S.A
5. Department of Neurology Massachusetts General Hospital Harvard Medical School Boston Massachusetts U.S.A