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López-Alarcón M, Hunter GR, Gower BA, Fernández JR.López-Alarcón M, et al. Among authors: fernandez jr.Arch Med Res. 2007 Jan;38(1):56-63. doi: 10.1016/j.arcmed.2006.07.002. Epub 2006 Nov 3.Arch Med Res. 2007.PMID: 17174724Free PMC article.