[1] Barts & London Queen Mary Sch Med & Dent, Dept Psychiat, London, England
[2] Univ Wales Coll Med, Dept Psychol Med, Cardiff CF4 4XN, S Glam, Wales
[3] Univ Birmingham, Dept Psychiat, Birmingham, W Midlands, England
[4] Inst Psychiat, Social Genet & Dev Psychiat Ctr, London, England
[5] Univ Geneva, Dept Psychiat, Geneva, Switzerland
[6] Univ Lausanne, Dept Psychiat, Lausanne, Switzerland
[7] Trinity Coll Dublin, Trinity Ctr Hlth Sci, Dublin, Ireland
[8] Univ Bonn, Dept Psychiat, D-5300 Bonn, Germany
[9] Univ Mannheim, Div Genet Epidemiol Psychiat, Mannheim, Germany
[10] Univ Aarhus, Dept Psychiat Demog, Aarhus, Denmark
[11] Washington Univ, Sch Med, Dept Psychiat, St Louis, MO 63110 USA