1. Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK
2. Great North Children’s Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
3. Complex Neurodevelopmental Disorders Service, Cumbria, Northumberland, Tyne and Wear NHS Foundation Trust, Newcastle upon Tyne, UK
4. Peninsula Childhood Disability Research Unit (PenCRU), Institute of Health Research, University of Exeter Medical School, University of Exeter, Exeter, UK
5. Evelina London Children’s Hospital, Guy’s and St Thomas’ NHS Foundation Trust, King’s Health Partners, London, UK
6. Sussex Community NHS Foundation Trust, Chailey Clinical Services, Lewes, UK
7. Patient and Public Involvement, Newcastle University, Newcastle upon Tyne, UK
8. National Autistic Society, London, UK