1. Department of Surgery and Department of Biomedical and Clinical Sciences, Linköping University Hospital and Linköping University, Linköping, Sweden
2. Department of Surgery, Västervik Hospital, Västervik, Sweden
3. Division of Nursing Science, Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
4. Pain and Rehabilitation Center and Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden