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Brown MA, Kennedy LG, MacGregor AJ, Darke C, Duncan E, Shatford JL, Taylor A, Calin A, Wordsworth P.Brown MA, et al. Among authors: macgregor aj.Arthritis Rheum. 1997 Oct;40(10):1823-8. doi: 10.1002/art.1780401015.Arthritis Rheum. 1997.PMID: 9336417