FILE - In this Jan. 9, 2008 file photo, Shinya Yamanaka, a Kyoto University scientist who invented a new, easy-to-handle technology to create the equivalent of  human stem cells from ordinary tissue like skin, speaks at a press conference in Tokyo. Yamanaka and British researcher John Gurdon have won this year&#x27;s Nobel Prize in medicine or physiology. The prize committee at Stockholm&#x27;s Karolinska Institute said Monday, Oct. 8, 2012 that the two researchers won the award &quot;for the discovery that mature cells can be reprogrammed to become pluripotent.&quot; (AP Photo/Shizuo Kambayashi, File)
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