FDA hazy on e cigarettes' safety CNN.com Electronic Cigarettes Pact Coalition E liquide : quivalence nicotine cigarette lectronique d'un paquet Disposable e cigarettes and their nicotine delivery, usage pattern, and subjective effects in occasionally smoking adults Scientific Reports UofL study shows nicotine in e cigarettes may not be harmless, as some claim UofL News E Cigarettes: Flavored Products Fuel Campaign for Tobacco Free Kids