Jan Andersson, Juleen Zierath and Hans Forssberg, members of the Karolinska Institute Nobel committee, talk to media at a press conference in Stockholm, Monday Oct. 5, 2015. The Nobel judges awarded the prize to Irish-born William Campbell, Satoshi Omura of Japan and Tu Youyou of China, the first ever medicine laureate from China. (Fredrik Sandberg/TT via AP)
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