Diniz, J.M.F. Baroni, J.M. Fernandes, B.F. Martins, D.M. Leucose bovina no estado do Parana [Doenca animal; Brasil] [Bovine leucosis in the state of Parana [Animal disease; Brazil]] Subjects--Topical Terms: Doenca animalBovinoLeucose linfoideVirusDiagnosticoPARANÁ