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Usnayo MJ, Andrade LE, Alarcon RT, Oliveira JC, Silva GM, Bendet I, Burlingame R, Porto LC, Pinheiro Gda R.Usnayo MJ, et al. Among authors: alarcon rt.Rev Bras Reumatol. 2011 Sep-Oct;51(5):474-83.Rev Bras Reumatol. 2011.PMID: 21952999English, Portuguese.