Carvalho L, Benesi FJ, Birgel Junior EH, Birgel EH. Prevalence of serie bovine leukosis virus antibodies in dairy cattle (Holstein) and beef cattle (Zebu/nelore) in Londrina, State of Paraná. Semina: Ciênc. Agrár. [Internet]. 1996 Jan. 19 [cited 2026 Mar. 4];17(1):53-7. Available from: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/5091