Vaping: Enough with the e puff Northwell Health Explainer: What are e cigarettes? Hon Lik invented the e cigarette to quit smoking but now he's a dual user Vaping The Guardian 5 Vaping Facts You Need to Know Johns Hopkins Medicine Sweet and Fruity E Cigarettes Thrive Despite Teen Vaping Crackdown WSJ Vaping: The tricks and loopholes e cigarette and tobacco industries use to target young people ABC News