As e cigarette use grows, more research needed on long term effects of vaping American Heart Association Investigating Behavioral and Neuronal Changes in Adolescent Mice Following Prenatal Exposure to Electronic Cigarette (E Cigarette) Vapor Containing Nicotine Sex specific alterations in pulmonary metabolic, xenobiotic and lipid signalling pathways after e cigarette aerosol exposure during adolescence in mice BMJ Open Respiratory Research Exposure to third hand e cigarette vapour impairs cognitive function in young mice ScienceDirect Electronic cigarettes for smoking cessation The BMJ Teens using e cigarettes show evidence of same toxic chemicals as smokers: Study ABC News