Author information:
(1)Adelaide Medical School and the Robinson Research Institute, The University 
of Adelaide, Adelaide, SA, Australia.
(2)Genetics of Learning Disability Service, Hunter Genetics, Waratah, NSW, 
Australia.
(3)School of Women's and Children's Health, University of New South Wales, 
Randwick, NSW, Australia.
(4)Faculty of Biology, Medicine and Health, Division of Evolution and Genomic 
Sciences, School of Biological Sciences, University of Manchester, Manchester, 
United Kingdom.
(5)Manchester Centre for Genomic Medicine, St. Mary's Hospital, Manchester 
University NHS Foundation Trust, Health Innovation Manchester, Manchester, 
United Kingdom.
(6)Department of Neuroscience, Erasmus MC University Medical Center, Rotterdam, 
Netherlands.
(7)ENCORE Expertise Centre for Neurodevelopmental Disorders, Erasmus MC 
University Medical Center, Rotterdam, Netherlands.
(8)Genetic Medicine, Department of Pediatrics, University of California, San 
Francisco, San Francisco, CA, United States.
(9)North West Thames Regional Genetics Service, Northwick Park Hospital, Harrow, 
United Kingdom.
(10)Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS 
Trust, and the 100,000 Genomes Project and the Genomics England Research 
Consortium, Nottingham, United Kingdom.
(11)Division of Pediatric Neurology, Medical University of South Carolina, 
Charleston, SC, United States.
(12)Department of Pediatrics, McMaster University Medical Centre, Hamilton, ON, 
Canada.
(13)Department of Diagnostic Genomics, PathWest, Nedlands, WA, Australia.
(14)Division of Pathology and Laboratory Medicine, Medical School, University of 
Western Australia, Crawley, WA, Australia.
(15)Faculty of Health and Medical Sciences, University of Western Australia 
Medical School, Perth, WA, Australia.
(16)Genetic Services of Western Australia, Undiagnosed Diseases Program, 
Department of Health, Government of Western Australia, Perth, WA, Australia.
(17)Linear Clinical Research, Perth, WA, Australia.
(18)Child Health Evaluative Sciences, Research Institute, The Hospital for Sick 
Children, and Institute of Health Policy Management and Evaluation, University 
of Toronto, Toronto, ON, Canada.
(19)Genome Diagnostics, Department of Paediatric Laboratory Medicine, The 
Hospital for Sick Children, and Laboratory Medicine and Pathobiology, University 
of Toronto, Toronto, ON, Canada.
(20)Department of Paediatrics, Division of Clinical and Metabolic Genetics, The 
Hospital for Sick Children, Toronto, ON, Canada.
(21)Department of Clinical Genetics, Erasmus MC University Medical Center, 
Rotterdam, Netherlands.
(22)Royal Devon and Exeter NHS Foundation Trust, Exeter, United Kingdom.
(23)Neuroradiology, Royal North Shore Hospital, Sydney, NSW, Australia.
(24)Childhood Disability Prevention, South Australian Health and Medical 
Research Institute, Adelaide, SA, Australia.