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...".

For these reasons, I believe that electronic cigarettes are a much more viable option as a harm reduction approach for smoking cessation.

The ACLU is also challenging the inclusion of electronic cigarettes in the regulations, as it seems absurd to ban the use of e-cigarettes in all parks, given the lack of any evidence that vaping in a park poses any substantial public health threat.

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