[1] UCL, Div Psychiat, London, England
[2] North East London NHS Fdn Trust, Acute & Rehabil Directorate, Rainham, England
[3] Greater Manchester Mental Hlth NHS Fdn Trust, Psychosis Res Unit, Manchester, England
[4] Psychiat Dienste Aargau, Aargau, Switzerland
[5] Lucerne Psychiat, Luzern, Switzerland