1. Division of Insurance Medicine, Department of Clinical Neuroscience, Karolinska Institutet , Stockholm, Sweden
2. School of Educational Sciences and Psychology, University of Eastern Finland , Joensuu, Finland
3. Finnish Institute for Health and Welfare , Helsinki, Finland
4. Department of Public Health, University of Turku and Turku University Hospital , Turku, Finland
5. Clinicum, Department of Public Health, University of Helsinki , Helsinki, Finland
6. Department of Epidemiology and Public Health, University College London , London, UK
7. Finnish Institute of Occupational Health , Helsinki, Finland
8. Department of Psychology, Stockholm University , Stockholm, Sweden
9. Faculty of Social Sciences and Business Sciences, Karelian Institute, University of Eastern Finland , Joensuu, Finland