Goran Hansson, a member of the Nobel committee for medicine or physiology, speaks during the announcement of the winners of the 2013 Nobel prize for medicine or physiology at the Nobel Assembly at the... more 
Goran Hansson, a member of the Nobel committee for medicine or physiology, speaks during the announcement of the winners of the 2013 Nobel prize for medicine or physiology at the Nobel Assembly at the Karolinska Institute in Stockholm October 7, 2013. REUTERS/Janerik Henriksson/TT News Agency less 
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Reuters | Photo By TT NEWS AGENCY / Reuters
Mon, Oct 7, 2013 7:43 PM EDT