Sarj Patel and Tom Rau (IMAGE) The University of Montana Caption UM researchers Sarj Patel, left, and Tom Rau, right, study blood-based biomarkers that indicate how the brain reacts following a traumatic brain injury. Credit Todd Goodrich 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.