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Barton A, Myerscough A, John S, Gonzalez-Gay M, Ollier W, Worthington J.Barton A, et al.Rheumatology (Oxford). 2000 Jan;39(1):63-6. doi: 10.1093/rheumatology/39.1.63.Rheumatology (Oxford). 2000.PMID: 10662875