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Ponte E, Franco RA, Souza-Machado A, Souza-Machado C, Cruz AA.Ponte E, et al.J Bras Pneumol. 2007 Jan-Feb;33(1):15-9. doi: 10.1590/s1806-37132007000100006.J Bras Pneumol. 2007.PMID: 17568863Free article.English, Portuguese.
Souza-Machado A, Souza-Machado C, Silva DF, Ponte EV, Cruz AA.Souza-Machado A, et al.J Bras Pneumol. 2007 Jul-Aug;33(4):372-9. doi: 10.1590/s1806-37132007000400005.J Bras Pneumol. 2007.PMID: 17982528Free article.English, Portuguese.