Vaping vs. Cigarettes: Everything I Learned in 2 Weeks After Reading All The Studies I Found. by Ram Mo ILLUMINATION Medium e Cigarettes Extractables and Leachables (E&L) Testing Jordi Labs Prospective studies related to e cigarette use and smoking cessation. Download Table E cigarettes linked with blood vessel damage National Institutes of Health (NIH) Latest Cochrane Review finds high certainty evidence that nicotine e cigarettes are more effective than traditional nicotine replacement therapy (NRT) in helping people quit smoking Cochrane