1. Department of NeurologyChildren's National Medical CenterWashington DC
2. Center for Genetic Medicine ResearchChildren's National Medical CenterWashington DC
3. School of Medicine and Health SciencesGeorge Washington UniversityWashington DC
4. Institute for Molecular BioscienceUniversity of QueenslandSt Lucia Queensland Australia
5. Department of Child NeurologyVU University Medical Center and Neuroscience Campus AmsterdamAmsterdam the Netherlands
6. Departments of PediatricsNeurology, and Neurosurgery, Montreal Children's Hospital, McGill University Health CenterMontreal Quebec Canada
7. University of Melbourne Centre for Cancer ResearchUniversity of MelbourneParkville Victoria Australia
8. Illumina IncSan Diego CA
9. Department of PediatricsChildren's National Medical CenterWashington DC
10. Department of Physical Medicine and RehabilitationChildren's National Medical CenterWashington DC
11. Institute for Metabolic DiseaseBaylor Research InstituteDallas TX
12. Department of NeurologyProgram in Neurogenetics, David Geffen School of Medicine, University of California, Los AngelesLos Angeles CA
13. Department of Functional GenomicsVU UniversityAmsterdam the Netherlands