E cigarette popularity still grows despite FDA anti vaping campaign F.D.A. Delays Decision on Juul's E Cigarettes but Orders Others Off the Market The New York Times Untitled FDA ban on certain flavored e cigarettes 'doesn't appear to be working' Notes from the Field: Use of Electronic Cigarettes and Any Tobacco Product Among Middle and High School Students United States, 20112018 MMWR Disposable e cigarettes and their nicotine delivery, usage pattern, and subjective effects in occasionally smoking adults Scientific Reports