E cigarette Characteristics, Safety Issues, & Regulation Britannica Smoking, vaping, hookah & e cigs Power to the Parent Chemical flavorings found in e cigarettes linked to lung disease Harvard Gazette Thirdhand Vapor from E cigarettes Damages the Lungs of Mice Thirdhand Smoke Resource Center Will New FDA Regs Make N.C.'s Vaping Industry Go Up in Smoke? E cigarettes and Vaping Idaho Office of Drug Policy