1. Effectiveness of the electronic cigarette: an eight-week flemish study with six-month follow-up on smoking reduction, craving and experienced benefits and complaints;Adriaens;Int. J. Environ. Res. Public Health,2014
2. Support for e-cigarette policies: a survey of smokers and ex-smokers in Great Britain;Brose;Tob. Control,2016
3. Centre for Tobacco Control Research and Education, 2014. Letter of support from 129 public health experts for WHO’s evidence based approach to electronic cigarettes. Available from: 〈https://tobacco.ucsf.edu/sites/tobacco.ucsf.edu/files/u9/Chan-letter-June16%20PST%20FINAL%20with%20129%20sigs.pdf〉.
4. Should e-cigarette use be permitted in smoke-free public places? No;Chapman;Tob. Control,2016
5. FDA (Food and Drug Administration), 2010. Summary of results: Laboratory Analysis of Electronic Cigarettes Conducted by FDA. Available from: 〈https://www.fda.gov/newsevents/publichealthfocus/ucm173146.htm〉.