[1] NCI,VIRAL CARCINOGENESIS LAB,FREDERICK,MD 21701
[2] NCI,FREDERICK CANC RES FACIL,PROGRAM RESOURCES INC,CELL & MOLEC STRUCT LAB,FREDERICK,MD 21701
[3] NCI,FREDERICK CANC RES FACIL,LBI BASIC RES PROGRAM,FREDERICK,MD 21701
[4] TULANE UNIV,SCH MED,DEPT MICROBIOL & IMMUNOL,NEW ORLEANS,LA 70112