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Oliveira SM, Ruffino-Netto A, Paniago AM, Oliveira OA, Marques M, Cunha RV, Andreotti R.Oliveira SM, et al. Among authors: oliveira oa.J Bras Pneumol. 2011 Sep-Oct;37(5):646-54. doi: 10.1590/s1806-37132011000500012.J Bras Pneumol. 2011.PMID: 22042397Free article.English, Portuguese.