The relationship between the degree of thrombocytopenia and infection with Ehrlichia canis in an endemic area Camilo Bulla, Regina Kiomi Takahira, João Pessoa Araújo Jr., Luzia AparecidaTrinca, Raimundo Souza Lopes and Charles Edward Wiedmeyer Vet. Res., 35 1 (2004) 141-146 DOI: 10.1051/vetres:2003038