[1] Univ Nottingham, Sch Med, Inst Mental Hlth, Div Psychiat & Appl Psychol, Nottingham, England
[2] Royal Coll Psychiatrists, Natl Collaborating Ctr Mental Hlth, London SW1X 8PG, England
[3] Kings Coll Hosp NHS Fdn Trust, Dept Paediat Neurol, London, England
[4] Great Ormond St Hosp Sick Children, Dept Child & Adolescent Mental Hlth, London WC1N 3JH, England
[5] Great Ormond St Hosp Children NHS Fdn Trust, Dept Clin Neuropsychol, London WC1N 3JH, England
[6] Univ Birmingham, Dept Neuropsychiat, Birmingham, W Midlands, England
[7] Barberry Natl Ctr Mental Hlth, Birmingham, W Midlands, England
[8] St Georges Hosp & Med Sch, Dept Neurol, London, England
[9] Univ Manchester, Div Clin Psychol, Manchester, Lancs, England