1. University of Sheffield, Institute of General Practice and Primary Care, Community Sciences Centre, Northern General Hospital, Herries Road, Sheffield S5 7AU
2. University of Birmingham, Department of Psychiatry, Queen Elizabth Psychiatric Hospital, Mindelsohn Way, Birmingham B15 2QZ
3. University of Wolverhampton, Division of Psychology, MC307, Wulfruna Street, Wolverhampton WV1 1SB