1. The University of Nottingham; Cochrane Schizophrenia Group; Institute of Mental Health, Sir Colin Campbell Building, University of Nottingham Innovation Park, Triumph Road, Nottingham UK NG7 2TU
2. University Hospital of Aarhus; Dept of Psychiatric Demography, Institute of Basic Psychiatric Research; Psykiatrisk Hospital Skovagervej 2 Risskov Denmark DK-8240
3. Royal Derby Hospital; Radbourne Unit; Uttoxeter New Road Derby UK DE22 3WQ