1. Department of Psychology, University of Oslo, Norway
2. Nic Waals Institute, Lovisenberg Diaconal Hospital, Norway
3. Norwegian Institute of Public Health, Norway
4. Oslo University Hospital, Norway
5. Graduate School of Applied and Professional Psychology, Rutgers University, USA
6. Department of Psychiatry and Behavioral Sciences, University of California San Francisco, USA
7. Department of Global Public health and Primary Care, University of Bergen, Norway
8. MRC Integrative Epidemiology Unit (IEU), University of Bristol, UK