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Educational differences in smoking: international comparison
Cavelaars AE;Kunst AE;Geurts JJ;Crialesi R;Grötvedt L;Helmert U;Lahelma E;Lundberg O;Matheson J;Miel...
2000 BMJ (Clinical research ed.) 259 views

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National Center for Biotechnology Information NCBI NLM MEDLINE humans pubmed abstract nih national institutes of health national library of medicine research support non-u.s. gov't adult female male aged middle aged Comparative Study odds ratio age distribution sex distribution