In other words, this study did not estimate quit rates among smokers trying to quit using e-cigarettes. Instead, it estimated quit rates among many smokers who were not using e-cigarettes in their quit attempt at all!

The reason for the failure of these researchers to disclose their past relationships with the tobacco industry is not entirely clear, but may revolve around their interpretation of the conflict of interest disclosure form's requirements. In section 3 of the form, authors of articles are asked to disclose any financial relationships with industry that occurred within the past three years. However, neither of the two co-authors has received money from any tobacco companies since 2010.

It is easy to see how this fatal flaw in the research destroys the validity of the authors' conclusion.

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