TY  - JOUR 
T1  - Selection, Recombination and History in a Parasitic Flatworm (Echinococcus) Inferred from Nucleotide Sequences
JO  - Memórias do Instituto Oswaldo Cruz
A1  - Haag, KL
A1  - Araújo, AM
A1  - Gottstein, B
A1  - Zaha, A
SN  - 0074-0276
UL  - 10.1590/S0074-02761998000500024
VL  - 93 
Y1  - 1998
PB  - Brasil 
ER  -