1. Movement Disorders Unit, Department of NeurologyWestmead HospitalSydney Australia
2. Institute of NeurogeneticsUniversity of LübeckLübeck Germany
3. TY Nelson Department of Neurology and NeurosurgeryChildren's Hospital at WestmeadWestmead Australia
4. University of SydneySydney Australia
5. Department of NeurologyBirmingham Children's HospitalBirmingham United Kingdom
6. College of Medical and Dental StudiesUniversity of BirminghamBirmingham United Kingdom
7. Molecular Neurosciences, Developmental Neurosciences Program, Institute of Child HealthUniversity College LondonLondon United Kingdom
8. Department of Child Neurology, Sant Joan de Déu HospitalUniversity of Barcelona Spain
9. Sydney Medical SchoolUniversity of Sydney Australia
10. Hunter GeneticsJohn Hunter HospitalNewcastle Australia
11. Genetics of Learning Disability ServiceNewcastle Australia
12. Sydney Children's Hospitals NetworkRandwick Australia
13. Department of Medical GeneticsSydney Children's HospitalRandwick Australia
14. Neurology DepartmentGosford HospitalGosford Australia
15. Neurology DepartmentSt George HospitalKogarah Australia
16. Department of Medical Genetics, Cambridge Institute for Medical ResearchUniversity of CambridgeCambridge United Kingdom
17. Department of HaematologyUniversity of Cambridge, NHS Blood and Transplant CenterCambridge United Kingdom
18. Wellcome Trust Sanger InstituteHinxton Cambridge United Kingdom