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Schiff M, Pritchard C, Huffstutter JE, Rodriguez-Valverde V, Durez P, Zhou X, Li T, Bahrt K, Kelly S, Le Bars M, Genovese MC.Schiff M, et al. Among authors: rodriguez valverde v.Ann Rheum Dis. 2009 Nov;68(11):1708-14. doi: 10.1136/ard.2008.099218. Epub 2008 Dec 15.Ann Rheum Dis. 2009.PMID: 19074911Free PMC article.Clinical Trial.