1. Department of Health Science and Technology, Faculty of Medicine, University of Aalborg, Aalborg, Denmark
2. Department of Public Health, Aarhus University, Aarhus, Denmark
3. DEFACTUM, Social and Health Services and Labour Market, Central Region Denmark, Aarhus, Denmark
4. Regional Hospital West Jutland, Herning, Denmark
5. Norwegian Research Centre (NORCE), Bergen, Norway