Research
Association between electronic cigarette use and changes in quit attempts, success of quit attempts, use of smoking cessation pharmacotherapy, and use of stop smoking services in England: time series analysis of population trends
BMJ 2016; 354 doi: https://doi.org/10.1136/bmj.i4645 (Published 13 September 2016) Cite this as: BMJ 2016;354:i4645Article usage
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