Health experts warn that flavored e cigarettes may lead to permanent lung damage. A U.S. teenager was diagnosed with "popcorn lung" after covertly vaping for three years, resulting in a lifelong, debilitating condition. Vaping Danger in Spotlight as Lung Injury Cases Mount Methodist Health System Omaha, Council Bluffs, Fremont Electronic cigarette vaping with aged coils causes acute lung injury in mice Archives of Toxicology Springer Nature Link E cigarette or vaping product use associated lung injury in an Download Scientific Diagram The Vaping Illness Outbreak: What We Know So Far Vermont Public Cases of Vaping Related Lung Illness Surge, Health Officials Say The New York Times