More defined survey measurements are needed to identify established users as the prevalence of e-cigarettes is growing, a new research has found. Shaped like a traditional cigarette, these battery-operated devices emit a nicotine vapor that could also contain flavorings. Another form of e-cigarette is a vaporizer type, which functions similar to an e-cigarette but allows users to add their own nicotine-containing liquid to the device. Not many nationally-representative ...
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Wednesday, May 28, 2014
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