Kyoto University Professor Yamanaka poses at Kyoto University in this handout photo

 
Kyoto University Professor Yamanaka poses at Kyoto University in this handout photo
Kyoto University Professor Shinya Yamanaka poses outside the university's Institute for Frontier Medical Science in Kyoto in this photo taken in April, 2009 and released by Kyoto University in Kyoto, western Japan. REUTERS/Center for iPS Cell Research and Application, Kyoto University/Handout