1. World Health Organization. World Health Organization fact sheets: Tobacco. Accessed January 4 2021. Available at:https://www.who.int/en/news-room/fact-sheets/detail/tobacco
2. Actions on Smoking and Health (ASH). Briefing: Health Inequalities and Smoking 2019. Accessed January 4 2021. Available at:https://ash.org.uk/wp-content/uploads/2019/09/ASH-Briefing_Health-Inequalities.pdf
3. Setting research priorities in tobacco control: a stakeholder engagement project