1. University of Bristol; Academic Unit of Psychiatry, School of Social and Community Medicine; Oakfield House Oakfield Grove Bristol UK BS8 2BN
2. University of Bristol; School of Social and Community Medicine; Cotham House, Cotham Hill Bristol Avon UK BS6 6JL
3. 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
4. Kyoto University Graduate School of Medicine / School of Public Health; Department of Health Promotion and Human Behavior; Yoshida Konoe-cho, Sakyo-ku, Kyoto Japan 601-8501