Gustavsson C, Bergström J, Denison E, von Koch L. Predictive factors for disability outcome at twenty weeks and two years following a pain self-management group intervention in patients with persistent neck pain in primary health care. JRM [Internet]. 2012 Dec. 10 [cited 2024 Aug. 11];45(2):170-6. Available from: https://medicaljournalssweden.se/jrm/article/view/15809