T Cells (IMAGE) University of Basel Caption T cells (yellow) recognize and attack leukemia cells (green). Credit (Illustration: University of Basel, Artem Kalinichenko) Usage Restrictions Give adequate attribution to the original author 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.