Helminen, E. E., Sinikallio, S. H., Valjakka, A. L., Vaisanen-Rouvali, R. H., Arokoski, J. P. Effectiveness of a cognitive-behavioural group intervention for knee osteoarthritis pain: a randomized controlled trial. Clinical Rehabilitation 2015; 9: 868-81

PubMed ID: PM:25413168