1. World Health Organization. Tobacco: Overview. Accessed October 2, 2022. https://www.who.int/health-topics/tobacco#tab=tab_1
2. World Health Organization. Tobacco. May 24, 2022. Accessed October 2, 2022. https://www.who.int/news-room/fact-sheets/detail/tobacco
3. Tobacco Smoking and Smokeless Tobacco Use among Domestic and International Medical Students in Hungary
4. World Health Organization. Expression of Interest - Tobacco Cessation Investment Case (4 - 5 different contractors) Now Closed. August 26, 2021. Accessed October 2, 2022. https://www.who.int/news-room/articles-detail/expression-of-interest---tobacco-cessation-investment-case-(4---5-different-contractors)
5. Tobacco carcinogens, their biomarkers and tobacco-induced cancer