; 10 U.S.C. 1071 note) is repealed. 9. Review of blast-related brain injury research and other efforts of the department of defense (a) Review (1) In general The Comptroller General of the United States shall conduct a review of the research and other efforts of the Department of Defense on traumatic brain injury, including injuries related to blast overpressure or blast exposure. (2) Matters to be included The review required by paragraph (1) shall include the following: (A) A description of the research conducted by the Department of Defense on traumatic brain injury, the entities involved in that research, and efforts to coordinate that research internally and externally. (B) A description of any improvements identified by that research related to the prevention, diagnosis, and treatment of blast-related brain injuries and an assessment of the implementation of those improvements. (C) An evaluation of the efforts of the Department to protect members of the Armed Forces from retaliation for seeking care for the prevention, diagnosis, or treatment of traumatic brain injury, blast overpressure, or blast exposure, including any gaps in or barriers to those efforts. (D) An evaluation of the list maintained by the Department of the military occupational specialties most at-risk for blast overpressure and blast exposure and whether additional at-risk occupational specialties should be included. (E) Any other finding the Comptroller General considers relevant. (b) Briefing and report Not later than 180 days after the date of the enactment of this Act, the Comptroller General shall brief the Committee on Armed Services of the Senate and the Committee on Armed Services of the House of Representatives on the review required under subsection (a), with a report to follow on a mutually agreed upon date. (c) Definition of traumatic brain injury In this section, the term traumatic brain injury means a traumatically induced structural injury or physiological disruption of brain function as a result of an external force that is