Electronic cigarettes (e cigarettes) are sometimes called e cigs, vapes, vape pens, and electronic nicotine delivery systems (ENDS). E cigarettes come in many shapes and sizes. Most e cigarettes contain nicotine. Get the facts about e cigarettes, October 15: The Week in Cancer News Cancer Today E Cigarette effects on oral health: A molecular perspective ScienceDirect Press Releases Clearing the Air: The Harsh Reality of Vaping and Smokeless Products Leading to Cancer Since their introduction in Europe in 2006 and the U.S. in 2007, the use of e cigarettes a.k.a., vapes has skyrocketed. A recent review from researchers in Australia found the results