; and (2) by inserting after subsection (k) the following new subsection (l): (l) Disclosure by Department of Defense (1) The Secretary of Defense shall disclose to a claimant under this section a copy of all written reports, other than medical quality assurance records (as defined in section 1102(j) of this title), prepared by a medical expert of the Department of Defense or any medical expert consulted by the Department with respect to the claim. (2) Any disclosure under paragraph (1) with respect to an expert described in such paragraph shall include the following: (A) The records and documents considered by the expert. (B) A description of the bases and reasons for the opinion of the expert. (C) The opinion or opinions of the expert regarding standard of care. (D) The opinion or opinions of the expert regarding causation. (E) A description of any disagreement by the expert with any opinion or opinions of the expert of the claimant. (3) Any disclosure under paragraph (1) with respect to an expert described in such paragraph shall not include an identification of the expert. (4) If an expert described in paragraph (1) does not prepare a written report, the Secretary shall disclose the information required under this section to the claimant in writing. . 723. Comptroller General study on impact of perinatal mental health conditions of members of the Armed Forces and their dependents on military readiness and retention (a) Study (1) In general The Comptroller General of the United States shall conduct a study on perinatal mental health conditions among members of the Armed Forces and dependents of such members during the five-year period preceding the date of the enactment of this Act. (2) Elements The study required under paragraph (1) shall include the following: (A) An assessment of beneficiaries under the TRICARE program, including members of the Armed Forces and dependents of such members, who attempted suicide or died by suicide or substance use overdose during the perinatal period. (B) An assessment of