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PDEA Director General Isagani Nerez explained that Thuoc Lao originates from a tobacco plant grown in Northern Vietnam, where locals smoke or chew it as part of traditional rituals

Those applications are longer and need more careful scientific review, said Mitch Zeller, former director of the FDAs Center for Tobacco Products and a current advisory board member for Qnovia, which is developing smoking-cessation products

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It had bought the original e-cigarette patents from Dragonite International, a Chinese company founded by Hon Lik, the man generally recognized as the inventor of the electronic cigarette, and was now seeking compensation