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Forslind K, Kälvesten J, Hafström I, Svensson B; BARFOT Study Group.Forslind K, et al.Arthritis Res Ther. 2012 Oct 15;14(5):R219. doi: 10.1186/ar4058.Arthritis Res Ther. 2012.PMID: 23068060Free PMC article.