1. Postdoctoral Researcher, King's College London, Institute of Psychiatry, Health Services and Population Research Department, London, England
2. Professor of Mental Health and Disability, Department of Health Sciences, University of Leicester, Leicester, England
3. Senior Lecturer, King's College London, Institute of Psychiatry, Health Services and Population Research Department, London, England
4. Research Assistant, King's College London, Institute of Psychiatry, Health Services and Population Research Department, London, England
5. Professor of Community Psychiatry, Head of the Health Services Research Department, Institute of Psychiatry, King's College London, London, England; Consultant Psychiatrist, South London and Maudsley NHS Trust, London, England; Director of Research and Development, South London and Maudsley NHS Trust, King's College London, Institute of Psychiatry, Health Services and Population Research Department, London, England