By David Reid
As the United States cracks down on rules governing e-cigarettes, a wide-ranging study in Britain has revealed how the technology is helping smokers to give up harmful tobacco.
Last week, the U.S. Food and Drug Administration (FDA) announced that production and marketing rules for cigarettes and roll your own tobacco will now extend to the sales of e-cigarettes, cigars as well as pipe and hookah tobacco.
The new rules come into effect at the beginning of August 2017.
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