2. "The cross-sectional nature of our study does not allow us to identify whether most youths are initiating smoking with conventional cigarettes and then moving on to (usually dual use of) e-cigarettes or vice versa...".

As a public health advocate, the position of the Tobacco Control Legal Consortium is perplexing to me. The Consortium appears to be calling for the removal of the 24-month grace period for submission of substantial equivalence or new product applications by electronic cigarette products. If this advice were to be implemented, then the only electronic cigarettes that could remain on the market are those which were actually marketed as of February 15, 2007. This means that 99.9% of the electronic cigarettes currently on the market would have to be taken off the market.

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.

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