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Duke University's Dr. Robert Lefkowitz, left, celebrates with colleague Mariano Garcia-Blanco at a party held for him in his offices on the Duke campus in Durham, N.C. on Wednesday, Oct. 10, 2012, after it was announced that Lefkowitz was the co-winner of the Nobel Prize in Chemistry. Lefkowitz and Brian Kobilka won the prize for studies of protein receptors that let body cells sense and respond to outside signals like danger or the flavor of food. Such studies are key for developing better drugs. (AP Photo/The News & Observer, Chris Seward) MANDATORY CREDIT

Associated Press
Duke University's  Dr. Robert Lefkowitz, left, celebrates with colleague Mariano Garcia-Blanco at a party held for him in his offices on the Duke campus in Durham, N.C. on Wednesday, Oct. 10, 2012, after it was announced that Lefkowitz was the co-winner of the Nobel Prize in Chemistry. Lefkowitz and Brian Kobilka won the prize for studies of protein receptors that let body cells sense and respond to outside signals like danger or the flavor of food. Such studies are key for developing better drugs. (AP Photo/The News & Observer, Chris Seward) MANDATORY CREDIT
Duke University's Dr. Robert Lefkowitz, left, celebrates with colleague Mariano Garcia-Blanco at a party held for him in his offices on the Duke campus in Durham, N.C. on Wednesday, Oct. 10, 2012, after it was announced that Lefkowitz was the co-winner of the Nobel Prize in Chemistry. Lefkowitz and Brian Kobilka won the prize for studies of protein receptors that let body cells sense and respond to outside signals like danger or the flavor of food. Such studies are key for developing better drugs. (AP Photo/The News & Observer, Chris Seward) MANDATORY CREDIT
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