Think of it this way: Individual X has smoked 2 packs per day for 30 years. She has tried, unsuccessfully, to quit smoking using the nicotine patch and nicotine gum. Finally, she has successfully quit smoking using electronic cigarettes.

In other words, not only is this fraud, but it is doing public health damage.

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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