[1] G GASLINI CHILDRENS HOSP,DEPT INFECT DIS,I-16147 GENOA,ITALY
[2] G GASLINI CHILDRENS HOSP,DEPT HAEMATOL ONCOL,I-16147 GENOA,ITALY
[3] G GASLINI CHILDRENS HOSP,LAB CLIN ANAL MICROBIOL 2,I-16147 GENOA,ITALY
[4] NATL INST CANC RES,DIV CLIN IMMUNOL,GENOA,ITALY