Image of Bone Marrow Environment (IMAGE) Imperial College London Caption Healthy bone marrow (yellow) invaded by leukaemia, with blood vessels in cyan (red). Credit Delfim Duarte/Imperial College London 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.