1. Department of Pediatrics, Division of Pediatric Neurology, Nationwide Children's Hospital, The Ohio State University, Columbus, Ohio, U.S.A.;
2. Division of Neurology, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, U.S.A.;
3. Division of Pediatric Neurology, Children's Healthcare of Atlanta, Atlanta, Georgia, U.S.A.;
4. Department of Pediatrics, Division of Pediatric Neurology, Medical University of South Carolina and Shawn Jenkins Children's Hospital, Charleston, South Carolina, U.S.A.;
5. Department of Biomedical Informatics, College of Medicine;
6. Center for Biostatistics, Wexner Medical Center, Biostatistics Resource at NCH (BRANCH), Nationwide Children's Hospital and The Ohio State University, Columbus, OH, U.S.A.;
7. Stead Family Department of Pediatrics, University of Iowa, Iowa City, Iowa, U.S.A.;
8. Department of Pediatrics, Division of Pediatric Neurology, University of Texas Southwestern, Dallas, Texas, U.S.A.;
9. Department of Neurology, Connecticut Children's Hospital, University of Connecticut, Hartford, Connecticut, U.S.A.;
10. Department of Pediatrics, Division of Pediatric Neurology, Nationwide Children's Hospital, Columbus, Ohio, U.S.A.;
11. Department of Neurology, Division of Epilepsy, University of California, San Francisco, San Francisco, California, U.S.A.;
12. Department of Neurology, Division of Epilepsy, Harvard University, Boston, Massachusetts, U.S.A.;
13. Department of Neurology, Division of Child Neurology, University of North Carolina Hospitals, Chapel Hill, North Carolina, U.S.A.;
14. Division of Neurology, Department of Pediatrics, University of Utah, Salt Lake City, Utah, U.S.A.;
15. Department of Pediatric Neurology and Developmental Neuroscience, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas, U.S.A.;
16. Center for Biostatistics, The Ohio State University Wexner Medical Center, Columbus, Ohio, U.S.A.;
17. Biostatistics Resource at Nationwide Children's Hospital, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, Ohio, U.S.A.;
18. Division of Neurology, Orange California & Department of Pediatrics, Children's Hospital of Orange County, UC Irvine, Orange, California, U.S.A.;
19. Department of Pediatrics, Division of Pediatric Neurology, University of Michigan, Ann Arbor, Michigan, U.S.A.;
20. Department of Pediatrics, Division of Pediatric Neurology, Duke University Medical Center, Durham, North Carolina, U.S.A.;
21. Children's Hospital and Medical Center, Omaha, Nebraska, U.S.A.;
22. Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, U.S.A;
23. Department of Pediatrics, Division of Pediatric Neurology, University of Texas Southwestern Medical Center, Dallas, Texas, U.S.A;
24. Department of Neurology, Division of Child Neurology, Stanford Children's Hospital, Stanford University, Palo Alto, California, U.S.A;
25. Division of Pediatric Neurology, Departments of Neurology and Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, U.S.A;
26. Comprehensive Epilepsy Program, Jane and John Justin Neuroscience Center, Cook Children's Medical Center, Fort Worth, Texas, U.S.A.