1. Department of Paediatric Neurology, Sydney Children’s Hospital Network, Sydney, NSW, Australia
2. Discipline of Paediatrics, School of Clinical Medicine, UNSW Medicine and Health, UNSW Sydney, NSW, Australia
3. Harry Perkins Institute of Medical Research, The University of Western Australia, Nedlands, WA, Australia
4. Department of Diagnostic Genomics, PathWest Laboratory Medicine, QEII Medical Centre, Perth, WA, Australia
5. Discipline of Child and Adolescent Health, Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
6. Kids Neuroscience Centre, The Children’s Hospital at Westmead, Westmead, NSW, Australia
7. Discipline of Paediatrics, University of Sydney, Sydney, NSW, Australia
8. The T.Y. Nelson Department of Neurology and Neurosurgery, The Children’s Hospital at Westmead, Sydney, NSW, Australia
9. NSW Newborn Screening Programme, Children’s Hospital Westmead, Westmead, NSW, Australia