1. Department of Neurology; University of Rochester Medical Center; Rochester New York
2. Developmental Neurosciences; UCL-Institute of Child Health; London United Kingdom
3. Department of Neurology; Great Ormond Street Hospital; London United Kingdom
4. Genetics and Genomics Medicine; UCL-Institute of Child Health; London United Kingdom
5. University of Buffalo School of Medicine; Buffalo New York
6. Children's Hospital Boston; Boston Massachusetts
7. Department of Pediatrics; Division of Genetic Medicine; University of Washington; Center for Integrative Brain Research; Seattle Children's Research Institute; Seattle Washington
8. North East Thames Regional Genetics Service; Great Ormond Street Hospital; London United Kingdom
9. Departments of Pediatrics and Biomedical Genetics; Center for Neural Development and Disease; University of Rochester Medical Center; Rochester New York