Experts say that flavored e cigarettes can cause irreversible lung damage. A U.S. teen developed "popcorn lung" after secretly vaping for 3 years a permanent, life altering disease. Officially known as bronchiolitis obliterans, Global youth vaping and respiratory health: epidemiology, interventions, and policies npj Primary Care Respiratory Medicine E cigarettes can help smokers quit, says study Vaping The Guardian Tableau des puissances pour bien utiliser ses rsistances de cigarette lectronique le petit vapoteur Smoke without fire: What's the truth on e cigarettes? New Scientist Resistance e cigarette Evod de Kangertech