TY  - SER
AU  - Ito,N.M.D.K.
AU  - Prestes,A.A.
AU  - Niceiporciukas,M.C.
TI  - Newcastle disease virus: some biological characteristics of twelve samples isolated im Brazil
KW  - NEWCASTLE
KW  - HEMOAGLUTINACAO
KW  - VIRUS
ER  -