1. Department of Human Genetics, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105, AZ, Amsterdam, The Netherlands
2. Department of Pathology & Laboratory Medicine, Western University, London, ON, N6A 5C1, Canada
3. Department of Pediatrics, Sainte-Justine UHC & University of Montreal, Montreal, QC, H3T 1C5, Canada
4. Department of Metabolic Medicine, Queensland Children’s Hospital, South Brisbane, QLD 4101, Australia
5. School of Medicine, University of Queensland, Brisbane, QLD 4072, Australia
6. Victorian Clinical Genetics Services, Murdoch Children’s Research Institute, Parkville, Victoria, 3052, Australia
7. Department of Paediatrics, University of Melbourne, Grattan Street, Parkville, Victoria, 3010, Australia
8. Murdoch Children’s Research Institute, Royal Children’s Hospital, Flemington Rd, Parkville VIC, 3052, Australia
9. University of Melbourne Department of Pediatrics, Parkville, Victoria, 3010, Australia
10. Genetics Services of Western Australia, Perth, 6008, Western Australia
11. Genetic Health Queensland, Royal Brisbane & Women’s Hospital, Herston, QLD 4006, Australia
12. Greenwood Genetic Center, Greenwood, SC 29646, United States
13. Laboratory of Regulatory and Functional Genomics, Fondazione IRCCS Casa Sollievo della Sofferenza, 71013, San Giovanni Rotondo (Foggia), Italy
14. Department of Molecular Medicine and Medical Biotechnology, University of Naples Federica II, 5 - 80131, Naples, Italy
15. Medical Genetics Unit, University of Perugia Hospital SM della Misericordia, Piazza dell'Università, 1, 06123, Perugia PG, Italy
16. Division of Medical Genetics, Fondazione IRCCS Casa Sollievo della Sofferenza, 71013, San Giovanni Rotondo (Foggia), Italy
17. Department of Clinical Genetics, United Laboratories, Tartu University Hospital, Riia 23b, 51010, Tartu, Estonia
18. Discipline of Child and Adolescent Health and Genomic Medicine, Sydney Medical School, Sydney University, Sydney, Camperdown NSW, 2050, Australia
19. Department of Clinical Genetics, Western Sydney Genetics Program, Children's Hospital at Westmead, Randwick NSW, 2031, Australia
20. Sydney Children's Hospitals Network-Westmead, Randwick NSW, 2031, Australia
21. University of Sydney, Camperdown NSW, 2006, Australia.
22. Sackler School of Medicine Tel Aviv University, Tel Aviv, 6997801, Israel
23. Laboratory of Molecular Genetics of Neurodevelopment, Department of Women's and Children's Health, University of Padua, Via Giustiniani 3, 35128, Padua, Italy
24. KAT6A Foundation, 3 Louise Dr., West Nyack, NY 10994, USA
25. Genetics and Molecular Medicine Department, Rare Disease Pediatric Unit, Hospital Sant Joan de Déu, 2, 08950 Esplugues de Llobregat, Barcelona, Spain
26. Tasmanian Clinical Genetics Service, Tasmanian Health Service, Royal Hobart Hospital, Hobart, TAS 7001, Australia
27. Molecular Genetics Laboratory, Molecular Diagnostics Division, London Health Sciences Centre, London, ON, N6A 5W9, Canada