Kyoto University Professor Shinya Yamanaka speaks during a news conference at Kyoto University in Kyoto, western Japan, Monday, Oct. 8, 2012, after learning that he and British researcher John Gurdon won this year&#x27;s Nobel Prize in physiology or medicine. The prize committee at Stockholm&#x27;s Karolinska Institute said the two won the prize for discovering that mature, specialized cells of the body can be reprogrammed into stem cells  a discovery that scientists hope to turn into new treatments. (AP Photo/Kyodo News) JAPAN OUT, MANDATORY CREDIT, NO LICENSING IN CHINA, FRANCE, HONG KONG, JAPAN AND SOUTH KOREA
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