1. PsyQ Emmen; Emmen Netherlands
2. Faculty of Medical Sciences; University of Groningen; Groningen Netherlands
3. Department of Psychiatry; University Medical Center Groningen, University of Groningen; Groningen Netherlands
4. Department of Epidemiology; University Medical Center Groningen, University of Groningen; Groningen Netherlands
5. Department of Psychiatry; University of Oxford; Oxford UK
6. Cochrane Common Mental Disorders; University of York; York UK
7. Centre for Reviews and Dissemination; University of York; York UK
8. Trimbos Institute; Utrecht Netherlands