Nobel awarded for stem cell, early cloning work - Article Photos 4/11

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's Nobel Prize in physiology or medicine. The prize committee at Stockholm'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