1. Department of Public Health and Clinical Medicine, Unit of Research, Education and Development Östersund, Umeå University, Umeå, Sweden
2. Department of Clinical Sciences, Lund University, Lund, Malmö
3. Department of R & D, Region Kronoberg, Växjö, Sweden
4. Department of Medicine and Optometry, Linnaeus University, Kalmar, Sweden
5. School of Medical Sciences, University Health Care Research Centre, Örebro University, Örebro, Sweden
6. Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden
7. Department of Surgical and Perioperative Sciences, Surgery, Umeå University, Umeå, Sweden