[1] Kings Coll Hosp NHS Fdn Trust, Dept Diabet Med, London, England
[2] Kings Coll London, Inst Psychiat, London WC2R 2LS, England
[3] Kings Coll London, Dept Biostat, London WC2R 2LS, England
[4] Kings Coll London, Diabet & Psychiat Res Grp, London WC2R 2LS, England
[5] South London & Maudsley NHS Fdn Trust, Natl Psychosis Serv, London, England