TY  - JOUR 
T1  - Salmonella Enteritidis in commercial layer flocks in Europe: legislative background, on-farm sampling and main challenges
JO  - Brazilian Journal of Poultry Science
A1  - Carrique-Mas, JJ
A1  - Davies, RH
SN  - 1516-635X
UL  - 10.1590/S1516-635X2008000100001
VL  - 10 
Y1  - 2008
PB  - Brazil 
ER  -