TY  - JOUR 
T1  - Detection of specific antibodies in cows after injection of PPD
JO  - Pesquisa Veterinária Brasileira
A1  - Marassi, Carla D.
A1  - Zarden, Carlos
A1  - Oelemann, Walter
A1  - Lilenbaum, Walter
SN  - 0100-736X
UL  - 10.1590/S0100-736X2014000300007
VL  - 34 
Y1  - 2014
PB  - Brasil 
ER  -