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Rodríguez M, González López-Valcárcel B.Rodríguez M, et al.J Epidemiol Community Health. 2011 May;65(5):389-90. doi: 10.1136/jech.2010.130005. Epub 2011 Feb 17.J Epidemiol Community Health. 2011.PMID: 21330460Free article.No abstract available.
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