Teen vaping could reverse progress in the control of tobacco

eurekalert.org – 11 de Julio 2016 – EEUU
A new USC study debunks the popular belief that electronic cigarettes are merely a substitute for cigarettes among teens. Instead, the study suggests that some teens who never would have smoked cigarettes are now vaping.

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http://www.eurekalert.org/pub_releases/2016-07/uosc-tvc070516.php