https://www.ada.org/en/press-room/news-releases/2019-archives/october/american-dental-association-statement-on-vaping?fbclid=IwAR04s4HEcstBaTYSRgYIv1B65_T6ydZS9Jcj9WTV0bjXCqCdA02Xb9vjw7o
https://news.harvard.edu/gazette/story/2019/04/harvard-scientist-finds-microbial-contaminants-in-e-cigs/?utm_medium=social&utm_campaign=hu-facebook-general&utm_source=facebook&fbclid=IwAR0xs7MwLyE2bHJtYxWyr6vfrVRwAii2oCS1N6jAQaN8P8H3_YrztyDCTUM
http://www.collegiatetimes.com/lifestyles/juul-the-new-cigarette/article_217f6b96-972d-11e7-b263-4f432ae36bc9.html
https://www.sciencedaily.com/releases/2016/11/161116101821.htm
http://abcnews.go.com/Health/john-lennons-molar-fight-oral-cancer/story?id=17627303
http://www.colgate.com/en/us/oc/oral-health/conditions/cancer/article/ada-04-take-heed-april-is-oral-cancer-awareness-month
http://www.dailymail.co.uk/health/article-3663839/E-cigarettes-toxic-mouth-Vaping-kills-cells-oral-cavity-raising-risk-disease.html#utm_sguid=160550,d5d8d5fb-538c-98f2-1a32-db450ce80215