1. Child and Adolescent Mental Health Services (CAMHS), East London NHS Foundation Trust, Bedford, UK
2. School of Pharmacy, University College London, London, UK
3. Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
4. Toxicology Unit, Kings College Hospital, London, UK
5. Department of Clinical and Experimental Epilepsy, University College London Queen Square Institute of Neurology, London, UK