Björck-van Dijken C, Fjellman Wiklund A, Hildingsson C. Low back pain, lifestyle factors and physical activity: a population based-study. JRM [Internet]. 2008 Sep. 18 [cited 2024 Nov. 25];40(10):864-9. Available from: https://medicaljournalssweden.se/jrm/article/view/18149