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Correia S, Nascimento C, Pereira L, Cunha MV, Sá-Correia I, Barreto C.Correia S, et al. Among authors: barreto c.Rev Port Pneumol. 2008 Jan-Feb;14(1):5-26.Rev Port Pneumol. 2008.PMID: 18265915Free article.English, Portuguese.