Chemical linked to 'popcorn lung' found in flavored e cigarette: study 2015 12 16 Stop calling the evidence "mixed." A massive new overview from the University of Oxford has analyzed a decade of data and found a clear winner in the fight against smoking: nicotine e cigarettes. Vaping Deemed Safe During Pregnancy After Study Conducted On Over 1100 Women Most people use e cigarettes to help them quit smoking Office for National Statistics Frontiers Research progress of E cigarette A bibliometric analysis during 20102022