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Trinidad DR, Pérez-Stable EJ, White MM, Emery SL, Messer K.Trinidad DR, et al. Among authors: emery sl.Am J Public Health. 2011 Apr;101(4):699-706. doi: 10.2105/AJPH.2010.191668. Epub 2011 Feb 17.Am J Public Health. 2011.PMID: 21330593Free PMC article.
Kim HS, Lee S, Cappella JN, Vera L, Emery S.Kim HS, et al.J Natl Cancer Inst Monogr. 2013 Dec;2013(47):182-7. doi: 10.1093/jncimonographs/lgt018.J Natl Cancer Inst Monogr. 2013.PMID: 24395989Free PMC article.