As the authors point out: "Of interest, consistent improvements in subjective and objective asthma outcomes were also observed amongst dual users (i.e., heavy reducers) with no real difference in dual compared to single users by the end of the observation period."

Unquestionably, there is still the need to regulate the sale and marketing of electronic cigarettes to minors. Sadly, and ironically, the only ones who seem to oppose laws to ban the sale of e-cigarettes to minors are the supposedly "anti-smoking" groups.

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