1. Psychology Department, Institute of Psychiatry, King's College, London, UK,
2. Psychology Department, Institute of Psychiatry, King's College, London, UK
3. Psychological Treatment Service, Addenbrooke's Hospital, Cambridge, UK
4. Section of Social Psychiatry, Health Services and Population Research Department, Institute of Psychiatry, King's College, London, UK
5. Maudsley Psychology Centre, Maudsley Hospital, London, UK
6. Department of Psychology, Guy's Campus, King's College, London, UK