1. National Research Centre for the Working Environment, Denmark
2. Medical Management Centre, Karolinska Institutet, Sweden; Centrum for Epidemiology and Community Medicine, Stockholm County Council, Sweden
3. Mälardalen University, School of Health, Care and Social Welfare, Sweden; Medical Management Centre, Karolinska Institutet, Sweden
4. Department of Psychiatry, St Olavs University Hospital, Norway; Department of Psychology, NTNU, Norway
5. Finnish Institute of Occupational Health, Finland
6. Institute of Work Psychology, University of Sheffield, UK