[1] NCI,FREDERICK CANC RES FACIL,DIV CANC TREATMENT,BIOL RESPONSE MODIFIERS PROGRAM,FREDERICK,MD 21701
[2] NCI,FREDERICK CANC RES FACIL,DIV CANC TREATMENT,PROGRAM RESOURCES INC,FREDERICK,MD 21701
[3] UNIV TURIN,INST HISTOL & EMBRYOL,I-10124 TURIN,ITALY
[4] UNIV PERUGIA,INST MICROBIOL,I-06100 PERUGIA,ITALY
[5] NCI,FREDERICK CANC RES FACIL,DIV CANC TREATMENT,BIOL RESPONSE MODIFIERS PROGRAM,FREDERICK,MD 21701