Genetic characterization of Brazilian bovine viral diarrhea virus isolates by partial nucleotide sequencing of the 5'-UTR region - Cortez, Adriana; Heinemann, Marcos Bryan; Castro, Alessandra Marnie Martins Gomes de; Soares, Rodrigo Martins; Pinto, Ana Maria Viana; Alfieri, Amauri Alcindo; Flores, Eduardo Furtado; Leite, Rômulo Cerqueira; Richtzenhain, Leonardo José (Pesquisa Veterinária Brasileira, 2006)