Lung cancer risks persist with e cigarette use after quitting tobacco smoking Known Health Effects of E Cigarette Use Kansas Health Institute Vaping: Know the Dangers Rady Children's Health Health effects and known pathology associated with the use of E cigarettes ScienceDirect Association between prolonged dual use of cigarettes and E cigarettes and psychosocial factors among U.S. Smokers: Secondary data analysis from the 2013 to 2019 PATH study ScienceDirect