Expression of protein in brain cancer (IMAGE) KTH, Royal Institute of Technology Caption The yellow bar in this readout of protein GFAP indicates elevated expression in the blood of patients with brain tumors. (image: Human Disease Blood Atlas) Credit Human Disease Blood Atlas Usage Restrictions Credit must be given to the creator. License CC BY 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.