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 | Professor 
 B.S. and M.S., 1987,
 Bucknell Univ.;
 
 Ph.D., 1992,
 Univ. of Illinois at Urbana Champaign;
 
 NIH Post-Doctoral Fellow, 1992-94,
 Univ. of North Carolina at Chapel Hill;
 
 Hellman Faculty Fellow, 1997-98,
 Univ. of California at Berkeley;
 
 Alfred P. Sloan Fellow, 1998-2000
 
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