1. Department of Occupational and Environmental Medicine, Bispebjerg-Frederiksberg Hospital, Copenhagen, Denmark
2. Department of Occupational Medicine, Danish Ramazzini Centre, Aarhus University Hospital, Aarhus, Denmark
3. National Research Centre for the Working Environment, Copenhagen, Denmark
4. Department of Public Health, Danish Ramazzini Centre, Aarhus University, Aarhus, Denmark
5. Danish Ramazzini Centre, Department of Occupational Medicine, Regional Hospital West Jutland – University Research Clinic, Herning, Denmark
6. The Danish Cancer Society, Research Center, Copenhagen, Denmark
7. Section of Biostatistics, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
8. Institute of, Public, Health, University of Copenhagen, Copenhagen, Denmark