TY  - JOUR 
T1  - Transgenic lettuce seedlings carrying hepatitis B virus antigen HBsAg
JO  - Brazilian Journal of Infectious Diseases
A1  - Marcondes, Jackson
A1  - Hansen, Ekkehard
SN  - 1413-8670
UL  - 10.1590/S1413-86702008000600004
VL  - 12 
Y1  - 2008
PB  - Brasil 
ER  -