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Cummings KM, Hyland A, Lewit E, Shopland D.Cummings KM, et al. Among authors: shopland d.Tob Control. 1997;6 Suppl 2(Suppl 2):S25-30. doi: 10.1136/tc.6.suppl_2.s25.Tob Control. 1997.PMID: 9583649Free PMC article.
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