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Levy DE, Thorndike AN, Biener L, Rigotti NA.Levy DE, et al.Tob Control. 2007 Dec;16(6):384-9. doi: 10.1136/tc.2007.021485.Tob Control. 2007.PMID: 18048614Free PMC article.
Rigotti NA, Bitton A, Kelley JK, Hoeppner BB, Levy DE, Mort E.Rigotti NA, et al. Among authors: levy de.Am J Prev Med. 2011 Nov;41(5):498-503. doi: 10.1016/j.amepre.2011.07.022.Am J Prev Med. 2011.PMID: 22011421Free PMC article.Clinical Trial.
Thorndike AN, Sonnenberg L, Riis J, Barraclough S, Levy DE.Thorndike AN, et al. Among authors: levy de.Am J Public Health. 2012 Mar;102(3):527-33. doi: 10.2105/AJPH.2011.300391. Epub 2012 Jan 19.Am J Public Health. 2012.PMID: 22390518Free PMC article.
Thorndike AN, Riis J, Sonnenberg LM, Levy DE.Thorndike AN, et al. Among authors: levy de.Am J Prev Med. 2014 Feb;46(2):143-9. doi: 10.1016/j.amepre.2013.10.002.Am J Prev Med. 2014.PMID: 24439347Free PMC article.Clinical Trial.
Thorndike AN, Riis J, Levy DE.Thorndike AN, et al. Among authors: levy de.Prev Med. 2016 May;86:12-8. doi: 10.1016/j.ypmed.2016.01.017. Epub 2016 Jan 29.Prev Med. 2016.PMID: 26827617Free PMC article.Clinical Trial.