The FDA announces its first authorization of fruit flavored e cigarettes intended for adult smokers. This major policy shift comes as teen vaping rates have dropped to a 10 year low and manufacturers have pushed Life threatening bronchiolitis related to electronic cigarette use in a Canadian youth CMAJ Canadian teen develops 'popcorn lung' like vaping illness, unlike U.S. patients What Chemicals Does Vaping Cause Popcorn Lung? : R Vaping Is Popcorn Lung Irreversible Popcorn Lung': Vapers at Risk of Irreversible Disease, Experts Warn : ScienceAlert Vaping: The Good, the Bad and the Popcorn Lung MPH Online