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In addition to sampling error, question wording and practical difficulties in conducting surveys can introduce error or bias into the findings of public opinion polls

How does the risk of cancer differ between people who vape but have never smoked, people who quit smoking but have continued vaping, and people who are both smoking and vaping (dual use)?

A study by the American Cancer Society published in 1996 found that the rate of lung cancer deaths among 200,000 smokers actually went up after light cigarettes began dominating sales

Both e-cigarette and cigarette users exhibited significant increases in: Biomarkers of oxidative stress and activation of innate defense mechanisms associated with lung disease

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