1. UCL Queen Square Institute of Neurology University College London London UK
2. Al Amiri Hospital Kuwait City State of Kuwait
3. Department of Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, Psychology and Neuroscience King's College London London UK
4. The LonDownS Consortium (London Down Syndrome Consortium) London UK
5. The Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience King's College London London UK