[1] NORTHWESTERN UNIV,DEPT BIOCHEM,EVANSTON,IL 60201
[2] NORTHWESTERN UNIV,DEPT MOLEC BIOL & CELL BIOL,EVANSTON,IL 60201
[3] NORTHWESTERN UNIV,DEPT ENGN SCI & APPL MATH,EVANSTON,IL 60201
[4] NORTHWESTERN UNIV,DEPT BIOMED ENGN,EVANSTON,IL 60201
[5] COLUMBIA UNIV,DEPT GENET & DEV & NEUROL,NEW YORK,NY 10032
[6] COLUMBIA UNIV,DEPT MICROBIOL,NEW YORK,NY 10032
[7] COLUMBIA UNIV,INST CANC RES,CTR CANC,NEW YORK,NY 10032
[8] NIAID,BETHESDA,MD 20892