[1] Kings Coll London, Inst Psychiat Psychol & Neurosci, Dept Psychol Med, Sect Eating Disorders, London, England
[2] Kings Coll London, Inst Psychiat Psychol & Neurosci, Dept Hlth Serv & Populat Res, London, England
[3] South London & Maudsley NHS Fdn Trust, Maudsley Hosp, London, England
[4] Kings Coll London, Inst Psychiat Psychol & Neurosci, Dept Biostat & Hlth Informat, London, England
[5] UCL, Div Med, London, England
[6] Univ Nottingham, Inst Mental Hlth, Jubilee Campus, Nottingham, England