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Carvalho LE, Cecatti JG, Osis MJ, Sousa MH.Carvalho LE, et al. Among authors: sousa mh.Rev Assoc Med Bras (1992). 2006 Sep-Oct;52(5):293-7. doi: 10.1590/s0104-42302006000500013.Rev Assoc Med Bras (1992). 2006.PMID: 17160300Free article.Portuguese.
Souza JP, Sousa MH, Parpinelli MA, Amaral E, Cecatti JG.Souza JP, et al. Among authors: sousa mh.Rev Assoc Med Bras (1992). 2008 May-Jun;54(3):249-55. doi: 10.1590/s0104-42302008000300019.Rev Assoc Med Bras (1992). 2008.PMID: 18604404Free article.