TY  - JOUR 
T1  - Annual review of immunology
JO  - Revista do Instituto de Medicina Tropical de São Paulo
A1  - Paul, William E.
A1  - Fathman, C. Garrison
A1  - Metzger, Henry
SN  - 0036-4665
UL  - 10.1590/S0036-46651993000300021
VL  - 35 
Y1  - 1993
PB  - Brasil 
ER  -