In an published today in the Wall Street Journal, I highlight the fact that many legislators and health organizations have demonized electronic cigarettes, largely on the basis of the erroneous conclusion that there is scientific evidence demonstrating that these products are a gateway to cigarette smoking among youth. The piece points out that there actually is no such scientific evidence and in fact, it presents evidence to the contrary.

The problem with what Dr. Glantz has done is that he is already disseminating the "answer" to this important research question without having actually done the research. That obviates the need to do the research because it is too late. The answer has already been disseminated, and it is going to affect important public policy as well as clinical decisions.

The problem is that in this cross-sectional study, there is no way to determine the direction of the observed relationship.

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