TY  - JOUR 
T1  - Trypanosoma cruzi: clonal structure of parasite strains and the importance of principal clones
JO  - Memórias do Instituto Oswaldo Cruz
A1  - Andrade, Sonia G
SN  - 0074-0276
UL  - 10.1590/S0074-02761999000700026
VL  - 94 
Y1  - 1999
PB  - Brazil 
ER  -