Tu Youyou (R) who won the 2015 Nobel Prize in Physiology or Medicine delivers a lecture at the Karolinska Institutet, Stockholm, Sweden, Dec. 7, 2015. (Photo: China News Service/Shen Chen)
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Tu Youyou (R) who won the 2015 Nobel Prize in Physiology or Medicine delivers a lecture at the Karolinska Institutet, Stockholm, Sweden, Dec. 7, 2015. (Photo: China News Service/Shen Chen)
