Björck-van Dijken, Christina, Anncristine Fjellman Wiklund, and Christer Hildingsson. “Low Back Pain, Lifestyle Factors and Physical Activity: A Population Based-Study”. Journal of Rehabilitation Medicine 40, no. 10 (September 18, 2008): 864–869. Accessed November 22, 2024. https://medicaljournalssweden.se/jrm/article/view/18149.