E-Cigarette and Combustible Cigarette (IMAGE) University of Chicago Medical Center Caption This shows an e-cigarette (right) as compared with a combustible cigarette (left). Credit University of Chicago/Kevin jiang Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.