Sharp rise in vapers using high strength nicotine in England UCL News UCL University College London E cigarette use to reduce cigarette smoking may not increase nicotine dependence Penn State Health News Hon Lik invented the e cigarette to quit smoking but now he's a dual user Vaping The Guardian The Look of Vapes Has Changed. Here's Why the Shift Has Experts Worried. The New York Times Vaping use among Michigan youth 4 H Healthy Youth Vaping: Enough with the e puff Northwell Health