[1] Southern Hlth NHS Fdn Trust, Southern Hlth Eating Disorders Serv, Southampton, Hants, England
[2] Nolfolk Community Eating Disorders Serv, Norwich, Norfolk, England
[3] South West Yorkshire Partnership NHS Fdn Trust, Barnsley Specialist Adult Learning Disabil Hlth S, Wakefield, England
[4] South London & Maudsley NHS Fdn Trust, South London & Maudsley Eating Disorder Serv, London, England
[5] Kings Coll London, Inst Psychiat, London WC2R 2LS, England
[6] Univ Sheffield, Dept Psychol, Clin Psychol Unit, Sheffield S10 2NT, S Yorkshire, England