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STOCKHOLM, SWEDEN - DECEMBER 10: Queen Silvia of Sweden and Chairman of the board of the Nobel Foundation, Professor Carl-Henrik Heldin arrive at the Nobel Prize Banquet 2015 at City Hall on December 10, 2016 in Stockholm, Sweden. (Photo by Pascal Le Segretain/Getty Images)

STOCKHOLM, SWEDEN - DECEMBER 10:  Queen Silvia of Sweden and Chairman of the board of the Nobel Foundation, Professor Carl-Henrik Heldin arrive at the Nobel Prize Banquet 2015 at City Hall on December 10, 2016 in Stockholm, Sweden.  (Photo by Pascal Le Segretain/Getty Images)