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Del Rincón I, Williams K, Stern MP, Freeman GL, O'Leary DH, Escalante A.Del Rincón I, et al. Among authors: williams k.Arthritis Rheum. 2003 Jul;48(7):1833-40. doi: 10.1002/art.11078.Arthritis Rheum. 2003.PMID: 12847676Free article.