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Hammer HB, Fagerhol MK, Wien TN, Kvien TK.Hammer HB, et al. Among authors: fagerhol mk.Arthritis Res Ther. 2011;13(5):R178. doi: 10.1186/ar3503. Epub 2011 Oct 26.Arthritis Res Ther. 2011.PMID: 22029973Free PMC article.