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U.S. President Barack Obama waves as he walks on the South Lawn of the White House in Washington

U.S. President Barack Obama waves as he walks on the South Lawn of the White House in Washington, U.S., after visiting wounded members of the military at Walter Reed National Military Medical Center November 29, 2016. REUTERS/Yuri Gripas

Walter Reed Army Medical Center

The Army's flagship hospital where privates to presidents have gone for care, is closing its doors after more than a century.