[1] CORNELL UNIV,COLL MED,DEPT PATHOL,NEW YORK,NY 10021
[2] CORNELL UNIV,COLL MED,DEPT MED,NEW YORK,NY 10021
[3] ROCKEFELLER UNIV,LAB MASS SPECTROMETRY,NEW YORK,NY 10021
[4] UNIV N CAROLINA,DEPT BIOCHEM & BIOPHYS,CHAPEL HILL,NC 27599
[5] INDIANA UNIV,SCH MED,DEPT BIOCHEM & MOLEC BIOL,INDIANAPOLIS,IN 46202