1. Department of Public and Occupational Health, Amsterdam Public Health research institute, VU University Medical Center, Amsterdam, The Netherlands;
2. Research Center for Insurance Medicine, AMC-UMCG-UWV-VUmc, Amsterdam, The Netherlands;
3. Department of Social Medical Affairs, The Dutch Social Security Institute: the Institute for Employee Benefits Schemes, Amsterdam, the Netherlands;
4. Department of Uni Research Health, Uni Research, Bergen, Norway;
5. Department of Science, ArboNed Occupational Health Services, Utrecht, the Netherlands;
6. Department of Epidemiology and Biostatistics, VU University Medical Center, Amsterdam, The Netherlands;
7. Department of General Practice, Institute of Health and Society, University of Oslo, Oslo, Norway