Wei Zheng (IMAGE) Vanderbilt University Medical Center Caption This is Wei Zheng. Credit Photo courtesy of Vanderbilt-Ingram Cancer Center Usage Restrictions Photo courtesy of Vanderbilt-Ingram Cancer Center 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.