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Matijasevich A, Victora CG, Barros AJ, Santos IS, Marco PL, Albernaz EP, Barros FC.Matijasevich A, et al.Am J Public Health. 2008 Apr;98(4):692-68. doi: 10.2105/AJPH.2006.093492. Epub 2007 Aug 29.Am J Public Health. 2008.PMID: 17761568Free PMC article.