China's Tu Youyou (2nd L) who won 2015 Nobel Prize in Physiology or Medicine attends a lecture in Karolinska Institutet, Stockholm, capital of Sweden, Dec. 7, 2015. (Photo: Xinhua/Ye Pingfan)
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China's Tu Youyou (2nd L) who won 2015 Nobel Prize in Physiology or Medicine attends a lecture in Karolinska Institutet, Stockholm, capital of Sweden, Dec. 7, 2015. (Photo: Xinhua/Ye Pingfan)
