; and (B) provides, at a minimum, role 4 medical care. (3) Location (A) In general Any major military medical center designated under paragraph (1) shall be geographically located so as to maximize the support provided by uniformed medical resources to the combatant commands. (B) Collocation with major aerial debarkation points In designating major military medical centers under paragraph (1), the Secretary shall give consideration to the collocation of such centers with major aerial debarkation points of patients in the medical evacuation system of the United States Transportation Command. (4) Major health care delivery platform A major military medical center designated under paragraph (1) shall serve as the major health care delivery platform for the provision of complex specialized medical care in the region, whether through patient referrals from other military medical treatment facilities or through referrals from either civilian medical facilities or healthcare facilities of the Department of Veterans Affairs. (e) Additional military medical centers Consistent with section 1073d of title 10, United States Code, the Secretary, in establishing regional medical hubs under subsection (a), may establish additional military medical centers in the following locations: (1) Locations with large beneficiary populations. (2) Locations that serve as the primary readiness platforms of the Armed Forces. (f) Patient referrals and coordination In implementing the regional medical hubs established under subsection (a), the Director of the Defense Health Agency shall ensure effective and efficient medical care referrals and coordination among military medical treatment facilities and among local or regional high-performing health systems through local or regional partnerships with institutional or individual civilian providers. 716. Monitoring of adverse event data on dietary supplement use by members of the Armed Forces (a) In general The Secretary of Defense shall modify the electronic health record system of the military