1. GH Sergievsky Center and Department of Epidemiology; Columbia University; New York; New York; U.S.A
2. Epilepsy Study Consortium and Department of Neurology; New York University; New York; New York; U.S.A
3. Department of Psychiatry; Columbia University; New York; New York; U.S.A
4. Department of Neurology; University of Pennsylvania; Philadelphia; Pennsylvania; U.S.A
5. Thomas Jefferson University; Philadelphia; Pennsylvania; U.S.A
6. Department of Neurology; Long Island Jewish Medical Center; North Shore; New York; U.S.A
7. Department of Neurology; Johns Hopkins University; Baltimore; Maryland; U.S.A
8. Department of Neurological Sciences and Psychiatry; Rush Medical College at Rush University; Chicago; Illinois; U.S.A