1. University Clinic of Hand, Hip and Knee Surgery, Regional Hospital West Jutland, Holstebro, Denmark
2. Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
3. Department of Occupational and Environmental Medicine, University of Copenhagen, Copenhagen, Denmark
4. Danish Ramazzini Centre, Aarhus University Hospital, Aarhus, Denmark
5. Department of Public Health, University of Copenhagen, Copenhagen, Denmark
6. Danish Ramazzini Centre, Regional Hospital West Jutland – University Research Clinic, Herning, Denmark