Nevertheless, the anti-smoking groups insist that the tobacco industry funding should have been disclosed. For one, they argue that section 5 of the form insists that authors disclose any other conflicts of interest, even if they occurred prior to the past three years. Second, they argue that the history of funding by tobacco companies is well within the spirit of the disclosure requirement and that the authors have an obligation to let readers know that in the past, they have had financial relationships with Big Tobacco.

Suppose that there are 1000 e-cigarette users who enter the cancer center with a diagnosis of cancer. Of these, an amazing 900 were able to quit smoking. However, 100 were very resistant smokers and could not quit smoking, even with e-cigarettes. Note that it would be these 100 resistant smokers who would be enrolled in the study. The 900 ex-smokers who quit using e-cigarettes would not be eligible for the study, because they no longer smoke.

Before reading on, readers may wish to take this short quiz to test their knowledge of this most eventful announcement by the FDA in support of its mission to protect the nation's public health:

The study concluded that: "e-cigarettes generate smaller changes in lung function but similar nicotinergic impact to tobacco cigarettes."

Recent data (Monthly tracking of key performance indicators; Electronic cigarettes in England - latest trends) from the Smoking Toolkit Study (Cancer Research UK, UK Centre for Tobacco Control Studies) reveal the following critical points:

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