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...".

Banning smoking in public parks and beaches may have environmental benefits, but in terms of human health, there is no evidence that these policies are actually addressing any substantial public health problem. In contrast, the problem of secondhand smoke exposure in New Jersey's casinos is truly a life and death issue.

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