TY  - JOUR 
T1  - Frequency of virulence genes in Escherichia coli strains isolated from piglets with diarrhea in the North Parana State, Brazil
JO  - Brazilian Journal of Microbiology
A1  - Vidotto, Marilda C.
A1  - Lima, Natália C.S. de
A1  - Fritzen, Juliana T.T.
A1  - Freitas, Júlio C. de
A1  - Venâncio, Emerson J.
A1  - Ono, Mario A.
SN  - 1517-8382
UL  - 10.1590/S1517-83822009000100035
VL  - 40 
Y1  - 2009
PB  - Brazil 
ER  -