1. New York University Comprehensive Epilepsy Center New York New York USA
2. Epilepsy Study Consortium Reston Virginia USA
3. Department of Neurology Jefferson Comprehensive Epilepsy Center Thomas Jefferson University Philadelphia Pennsylvania USA
4. Department of Pediatrics University of Michigan Ann Arbor Michigan USA
5. Departments of Neurology and Pediatrics Children's Hospital of Philadelphia Perelman School of Medicine at the University of Pennsylvania Philadelphia Pennsylvania USA