cancer and tobacco Tobacco and Lung Cancer: The

For Stanton Glantz, PhD, a professor of medicine at the University of California San Francisco who has studied electronic cigarettes, one of the biggest worries about the devices is something called dual use. The term means that while some electronic cigarettes market themselves as safer alternatives to cigarettes, many people dont fully replace tobacco cigarettes with their electronic counterparts and instead just combine the use of both

Further, our study benefits from the repeated outcome measures afforded by the PATH Study, as well as explicitly accounting for pack-years of smoking and additional confounders not captured by other studies

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Even with strong verification knowledge, the purchase source remains the most decisive factor