One in 4 Canadians smokes, Ottawa reports.
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D000293:Adolescent; D000328:Adult; D000368:Aged; D002170:Canada / Q000453:epidemiology; D003430:Cross-Sectional Studies; D006801:Humans; D015994:Incidence; D008875:Middle Aged; D012907:Smoking / Q000453:epidemiology*; D000074606:Smoking Prevention