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Cabral FB, Hirt LM, van der Sand IC.Cabral FB, et al. Among authors: van der sand ic.Rev Esc Enferm USP. 2013 Apr;47(2):281-7. doi: 10.1590/s0080-62342013000200002.Rev Esc Enferm USP. 2013.PMID: 23743891Free article.Portuguese.