FDA permits the marketing of an e cigarette for the first time, paving the way for vaping products to be legally sold in the U.S. Roswell Park Comprehensive Cancer Center Buffalo, E cigarettes to quit smoking? They're as good as nicotine patches Los Angeles Times Largest US study of e cigarettes shows their value as smoking cessation aid What Vape Should You Buy To Quit Smoking? Using Vaping to Quit Smoking: A Step by Step Guide CIV Plus How to Quit Vaping: A Practical Guide