Weak enforcement of Brazil's E cigarette ban and the expansion of a dangerous illicit market The Lancet Regional Health Americas Vaping: How E cigs Work (Infographic) Live Science Exposure to e cigarette advertising and young people's use of e cigarettes: A four country study Juul Illegally Marketed E Cigarettes, F.D.A. Says The New York Times How Big Vaping is misinforming the public about e cigarettes Vox A Bolder Effort by Big Tobacco on E Cigarettes The New York Times