After claiming that there is now abundant scientific evidence that electronic cigarettes are a gateway to smoking, these politicians go on to urge the FDA to ban flavorings in e-cigarettes and to ban the online sale of these products.

E. Announced regulations on electronic cigarettes that carve out a special regulatory category for these products that encourages e-cigarette use over tobacco cigarette use.

Harris et al., in perhaps the most comprehensive and definitive on this issue, found a clear increase in cancer risk associated with non-filtered cigarettes. As they reported: "Compared with smokers of medium tar (15-21 mg) filter cigarettes, risk was higher among men and women who smoked high tar (> or = 22 mg) non-filter brands (hazard ratio 1.44, 95% confidence interval 1.20 to 1.73, and 1.64, 1.26 to 2.15, respectively)."

Second, disclosure of conflicts of interest is essential to achieve the public health ethical principle of transparency. Readers have the right to know if there are any relevant conflicts that could be perceived as influencing the objectivity of scientific reports.

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