[1] NCI,TUMOR VIRUS BIOL LAB,BLDG 41,ROOM D-824,BETHESDA,MD 20892
[2] NCI,PEDIAT BRANCH,BETHESDA,MD 20892
[3] NCI,MED BRANCH,BETHESDA,MD 20892
[4] UNIV CALGARY,DEPT BIOCHEM,CALGARY T2N 4N1,ALBERTA,CANADA
[5] CASE WESTERN RESERVE UNIV,DEPT MICROBIOL & MOLEC BIOL,CLEVELAND,OH 44106
[6] MEM SLOAN KETTERING CANC CTR,CELLULAR & BIOCHEM GENET LAB,NEW YORK,NY 10021