(FILES) In this file photo taken on April 25, 2013 US First Lady Michelle Obama (L) and former First Ladies (L-R) Laura Bush, Hillary Clinton, Barbara Bush and Roslyn Carter arrive on stage to attend the George W. Bush Presidential Center dedication ceremony in Dallas, Texas.  Former US first lady Barbara Bush died on Tuesday, April 17, 2018 at the age of 92 / AFP PHOTO / Jewel SAMADJEWEL SAMAD/AFP/Getty Images
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