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We used the BPRF for each riskoutcome pair to calculate riskoutcome scores (ROSs) and categorize the strength of evidence for the association between smoking and each health outcome using a star rating from 1 to 5

E-Cigarettes/Vaping does not involve the combustion of foreign irritants, but it still causes the consumption of nicotine and other prepared sprays such as Propylene Glycol

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It is present in cigarette smoke and, while definitive conclusions have not yet been drawn, it is generally understood that smokers face an increased risk of leukemia over their nonsmoking peers

Globally, the problem of secondhand or thirdhand smoke still needs to be addressed