TY  - JOUR 
T1  - Infectious bronchitis in Brazilian chickens: current data and observations of field service personnel
JO  - Brazilian Journal of Poultry Science
A1  - Silva, EN
SN  - 1516-635X
UL  - 10.1590/S1516-635X2010000300009
VL  - 12 
Y1  - 2010
PB  - Brasil 
ER  -