The study took place primarily in Kansas and Missouri, with additional sites in Colorado, Texas and Michiganareas that have high smoking rates and high mortality from lung cancer
Researchers found that e-cigarettes operated at high voltages produce vapor with large amounts of formaldehyde-containing chemical compounds
Missouri has the most laxed tobacco tax in all of the states, charging only 17 cents per pack and the average age of initiation of smoking in Boone County is 12.67 years, Chadwick said

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