-https://voterguide.sos.ca.gov/propositions/31/analysis.htm
-https://nida.nih.gov/publications/research-reports/tobacco-nicotine-e-cigarettes/how-does-tobacco-deliver-its-effects-https://www.verywellmind.com/what-is-snuff-and-how-is-it-used-2824867
-https://sites.duke.edu/seektobacco/1-the-addictive-nature-of-nicotine/the--content/#:~:text=Nicotine%20is%20inhaled%20from%20cigarette,entire%20body%2C%20including%20the%20brain.-https://www.lung.org/research/sotc/by-the-numbers/top-10-populations-affected
-https://www.cnn.com/2022/10/06/health/students-e-cigarette-use-
-study/index.html#:~:text=They%20found%20that%2014.1%25%20of,of%20them%20repor
-https://www.kpbs.org/news/local/2022/04/25/san-diego-bans-sale-of-flavored-tobacco-vape-products
-https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3894096/
-https://order.nia.nih.gov/sites/default/files/2019-01/AgePage-smoking-never-too-late-to-stop.pdf