TY - SER AU - Flores,E.F. AU - Weiblen,R. AU - Medeiros,M. AU - Botton,S.A. AU - Irigoyen,L.F. AU - Dreimeier,D. AU - Schuch,L.F. AU - Moraes,M. TI - A retrospective search for bovine respiratory syncytial virus (BRSV)antigens in histological specimens by immunofluorescence and immunohistochemistry KW - Bovino KW - Pneumonia KW - Virus KW - Imunizacao KW - Diagnostico ER -