While research is clearly needed to understand the trajectory of youth use of electronic cigarettes, the Monitoring the Future survey data do not support the CDC's conclusion that these products are serving as a gateway to youth smoking.

"This is a blatant attempt at rent-seeking by an obvious vested interest. We know that the pharmaceutical industry has been lobbying hard to hamper the growth of e-cigarettes so it comes as no surprise to find Glaxo using the tired old gateway argument. The truth is that e-cigarettes will only "seriously disadvantage" the NRT market if they work better as quitting aids. In my experience—and the experience of countless other people—e-cigarettes are much better substitutes for smoking. If they were really a "gateway" to smoking, e-cigarettes would be good for companies like Glaxo as they would create more smokers (NRT companies need there to be smokers just as much as cigarette companies do)."

Even if e-cigarette vapor shows some toxicity in cell culture studies, how does that demonstrate that vaping is more harmful than smoking?

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