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Barkham N, Coates LC, Keen H, Hensor E, Fraser A, Redmond A, Cawkwell L, Emery P.Barkham N, et al.Ann Rheum Dis. 2010 Nov;69(11):1926-8. doi: 10.1136/ard.2009.121327. Epub 2010 May 28.Ann Rheum Dis. 2010.PMID: 20511615Clinical Trial.