Rugang Zhang, The Wistar Institute (IMAGE) The Wistar Institute Caption This is Rugang Zhang, Ph.D., Associate Professor, Gene Expression and Regulation Program, The Wistar Institute. Credit The Wistar Institute 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.