The rest of the story is this study actually found no effect of electronic cigarette use on pulmonary function tests, indicating that there was no clinically significant observable effect of vaping on lung function. Specifically, the study found "no differences between basic pulmonary measurements" between the two groups, demonstrating that acute exposure to electronic cigarette vapor did not affect FEV1, FVC, PEF or MEF50 and MEF75."

"If smoking cessation products can achieve a greater acceptance among smokers by offering craving relief, coupled with rapid absorption and mimicking many aspects of a cigarette ... they will enable a greater proportion of the smoking population to begin their journey towards quitting or substitution of cigarettes with medicinal nicotine products."

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