Handout photo of Lefkowitz being congratulated by then U.S. President Bush after receiving the National Medal of Science in Washington

 
Handout photo of Lefkowitz being congratulated by then U.S. President Bush after receiving the National Medal of Science in Washington
American physician Robert Lefkowitz (L) from Duke University is congratulated by then U.S. President George W. Bush after receiving the National Medal of Science in this handout photo taken in Washington September 29, 2008. REUTERS/Sandy Schaeffer/National Science Foundation/Handout