E-cigarettes are estimated to have helped 16,000-22,000 smokers in England to quit in 2014

http://www.eurekalert.org/pub_releases/2016-02/w-eae022916.php

Public Release: 29-Feb-2016
E-cigarettes are estimated to have helped 16,000-22,000 smokers in England to quit in 2014
Wiley

Researchers from University College London estimate that use of e-cigarettes produced 16K-22K additional long-term quitters in England in 2014.1 A long-term quitter is someone who has not smoked for at least one year.

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