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ST. LOUIS – If you have a teenager, you are likely familiar with vaping or Juuls, if not you should be. Being on the market for just two years, the Juul, which is a type of e-cigarette, has become so popular among young people, it has garnered nearly half of the e-cigarette market share. Patricia Cavazos-Rehg, an Associate Professor of Psychiatry at Washington University visits Fox 2 News on the potential dangers of these habits.

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