Ralph Weichselbaum and Yang-Xin Fu (IMAGE) Ludwig Institute for Cancer Research Caption Ludwig Chicago Co-director Ralph Weichselbaum and Kaiting Yang, a postdoctoral researcher in Weichselbaum’s lab. Credit Ludwig Cancer Research 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.