Ektor-Andersen, J., Ingvarsson, E., Kullendorff, M., & Ørbæk, P. (2007). High cost-benefit of early team-based biomedical and cognitive-behaviour intervention for long-term pain-related sickness absence. Journal of Rehabilitation Medicine, 40(1), 1–8. https://doi.org/10.2340/16501977-0127