1. Section of Sustainable Health, Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
2. Department of Geriatrics, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
3. Department of Occupational and Environmental Medicine, University Hospital of North Norway, Tromsø, Norway
4. Department of Community Medicine, UiT The Arctic University of Norway, Tromsø, Norway