Furthermore, later in the paper they reinforce this point more specifically, writing: "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...".
b. Menthol
1. It Violates Public Health Ethics and Could Be Damaging to the Entire Field of Tobacco Control
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