1. Department of Medical and Health Sciences, Community Medicine, Linköping University, Lasarettsgatan, Linköping, Sweden
2. Department of Medical and Health Sciences, Physiotherapy, Linköping University, Lasarettsgatan, Linköping, Sweden
3. Rehab Väst, County Council of Östergötland, Department of Rehabilitation and Department of Medical and Health Sciences, Linköping University, Lasarettsgatan, Linköping, Sweden
4. Centre for Clinical Research Sörmland, Uppsala University, Uppsala, Sweden