Health leaders welcome FDA action on e cigarettes UT Health San Antonio Study reveals how salt based nicotine and menthol flavors influence e cigarette use in young adults Where There's Vapor, Is There Fire? We Need Evidence on E Cigarettes RAND 1 in 20 American Adults Are Using E Cigarettes, Study Finds Puff Bar Vape E Cigarettes Could Face FDA Crackdown E cigarettes stub out the tobacco industry's success World Finance