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Ferraz-Amaro I, García-Dopico JA, Medina-Vega L, González-Gay MA, Díaz-González F.Ferraz-Amaro I, et al.Arthritis Res Ther. 2013 Jan 22;15(1):R17. doi: 10.1186/ar4149.Arthritis Res Ther. 2013.PMID: 23339356Free PMC article.