In landmark FDA tobacco study, e-cig questions likely to linger

February 26, 2015 12:51 AM

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(Reuters) - The U.S. Food and Drug Administration is poised to release initial data from a landmark study into how Americans use tobacco products, but researchers expect many key questions about e-cigarettes to remain unanswered.

The five-year Population Assessment of Tobacco and Health (PATH) Study of about 46,000 people, begun in 2011, is expected to provide a wealth of data about smoking behavior that could shape regulations ranging from warning labels and advertising restrictions to new product approvals.

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