1. Department of Pediatrics Vanderbilt University Medical School Nashville Tennessee USA
2. Department of Pediatrics, School of Medicine, Children's Hospital Colorado University of Colorado Aurora Colorado USA
3. Division of Child Neurology, Departments of Neurology and Pediatrics, Children's Hospital of Philadelphia University of Pennsylvania Perelman School of Medicine Philadelphia Pennsylvania USA
4. Department of Pediatrics University of Alabama at Birmingham Birmingham Alabama USA
5. Department of Pediatric Neurology, Boston Children's Hospital Harvard University Boston Massachusetts USA
6. Greenwood Genetic Center Greenwood South Carolina USA
7. Department of Pediatrics Baylor College of Medicine Houston Texas USA
8. Department of Pediatrics Rush Medical Center Chicago Illinois USA
9. Department of Pediatrics Gillette Specialty Healthcare St. Paul Minnesota USA
10. Department of Pediatrics Cincinnati Children's Hospital Cincinnati Ohio USA
11. Department of Neurology, School of Medicine Washington University St. Louis Missouri USA
12. Departments of Neurosciences and Pediatrics University of California San Diego San Diego California USA
13. Department of Biostatistics, School of Public Health University of Alabama at Birmingham Birmingham Alabama USA