The VA has teamed up with the Defense Department and thousands of veteran volunteers on what could be breakthrough research to get at the root causes of post-traumatic stress disorder and open up paths to new methods of treatment, according to VA officials. The research could provide a "source of hope for veterans living with the invisible wounds of war, and it is our job to turn that hope into treatments," said Dr. Carolyn Clancy, the deputy undersecretary for Discovery, Education, and Affiliated Networks at the Department of Veterans Affairs. At a hearing of the House Veterans Affairs subcommittee Jun 26, Clancy said that the research project, in coordination with DoD, would follow thousands of veterans identified with mild traumatic brain injury received in combat. Read more on Military.com.