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Backes DS, Koerich MS, Erdmann AL.Backes DS, et al. Among authors: erdmann al.Rev Lat Am Enfermagem. 2007 Jan-Feb;15(1):34-41. doi: 10.1590/s0104-11692007000100006.Rev Lat Am Enfermagem. 2007.PMID: 17375230Free article.
Falcón GC, Erdmann AL, Backes DS.Falcón GC, et al. Among authors: erdmann al.Rev Lat Am Enfermagem. 2008 May-Jun;16(3):419-24. doi: 10.1590/s0104-11692008000300014.Rev Lat Am Enfermagem. 2008.PMID: 18695816Free article.English, Portuguese, Spanish.