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 Business Standard and Medical Xpress reporters were not the only ones to get this message from the study and its authors. According to an on the CBS Atlanta web site: "Exposure to surfaces and objects that have been saturated in cigarette smoke, labeled as “third-hand smoke,” may be as deadly as smoking the cigarette itself."

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