1. World Health Organization. Tobacco. Updated July 31, 2023. Accessed September 7, 2023. https://www.who.int/news-room/fact-sheets/detail/tobacco
2. European Network for Smoking and Tobacco Prevention. Guidelines for treating tobacco dependence. ENSP; 2020. Accessed September 13, 2023. https://ensp.network/wp-content/uploads/2020/10/guidelines_2020_english_forprint.pdf
3. World Health Organization. Toolkit for delivering the 5A’s and 5R’s brief tobacco interventions in primary care. WHO; 2014. Accessed September 13, 2023. https://apps.who.int/iris/bitstream/handle/10665/112835/9789241506953_eng.pdf
4. Carr AJ. The Easy Way to Stop Smoking. Penguin; 1987
5. Allen Carr's Easyway. Accessed September 7, 2023. https://www.allencarr.com/