1. Mental Health and Addiction Research Group, Department of Health Sciences; University of York; York UK
2. Hull York Medical School; University of York; York UK
3. Cochrane Common Mental Disorders; University of York; York UK
4. Centre for Reviews and Dissemination; University of York; York UK
5. School of Medicine; Keele University; Keele UK
6. Unit of Academic Primary Care; Warwick Medical School, University of Warwick; Coventry UK
7. Tees, Esk and Wear Valleys NHS Foundation Trust; York UK
8. Department of Psychological Medicine, Faculty of Medical and Health Sciences; The University of Auckland; Auckland New Zealand
9. Children and Young People Satellite, Cochrane Common Mental Disorders; The University of Auckland; Auckland New Zealand