1. Action on Smoking and Health (ASH) . Smoking statistics, 2015. Available: http://www.ash.org.uk/files/documents/ASH_93.pdf
2. Action on Smoking and Health (ASH) . Adult smoking habits in the UK: 2018, 2019. Available: https://www.ons.gov.uk/peoplepopulationandcommunity/healthandsocialcare/healthandlifeexpectancies/bulletins/adultsmokinghabitsingreatbritain/2018#health-consequences-of-cigarette-smoking [Accessed 11 Feb 2020].
3. Public Health England . Smoking and tobacco: applying all our health, 2017. Available: https://www.gov.uk/government/publications/smoking-and-tobacco-applying-all-our-health/smoking-and-tobacco-applying-all-our-health [Accessed 20 Aug 2018].
4. World Health Organization . Smoke-Free movies: from evidence to action. Geneva: World Health Organization, 2016.
5. Framework convention on tobacco control. guidelines on implementation. (2011). Geneva. World health organisation. available at. Available: http://www.who.int/fctc/protocol/guidelines/adopted/guidel_2011/en/index.html