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...".

• The truth is that there is abundant evidence that electronic cigarettes are much safer than regular cigarettes. Even the tobacco industry itself acknowledges that smoking is more hazardous than vaping.

The Surgeon General's concludes that: "The introduction of ventilated filters, or changes in the design and composition of cigarettes that accompanied their introduction, may have increased the carcinogenicity of cigarette smoke."

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