The fifth and final complete examination of the surviving cohort concluded in Spring, 1996 under a contract with the National Institute on Aging. While the emphasis of this exam was the investigation of dementia, NHLBI funded the recording of blood pressures and ECGs as well as the continued surveillance for morbidity and mortality. A cooperative agreement extends the surveillance for an additional five years. As part of the close-out phase of the study, frozen blood samples collected since the study's inception have been sent to a repository in Rockville, MD. A review board for screening prospective users of this resource holds quarterly meetings.