1. Centre for Reviews and Dissemination, Cochrane Common Mental Disorders Group, University of York, York, United Kingdom;
2. Division of Psychiatry and Applied Psychology, Institute of Mental Health, University of Nottingham, Nottingham, United Kingdom;
3. School of Medicine Division of Psychiatry and Applied Psychology, Institute of Mental Health, University of Nottingham Innovation Park, University of Nottingham, Nottingham, United Kingdom;
4. Division of Psychiatry and Applied Psychology, University of Nottingham, Nottingham, United Kingdom