Two Masks (image) Drexel University Share Print E-Mail Caption Two of the masks that were a part of the analysis for ties between themes that were depicted and symptoms tied to recovery from traumatic brain injury in military service members. Credit Courtesy of the BMJ Open Usage Restrictions Credit as specified. Share Print E-Mail 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.