Histological and immunohistochemical study of the central nervous system of dogs naturally infected by Leishmania (Leishmania) chagasi - Ikeda, Fabiana Augusta; Laurenti, Márcia Dalastra; Corbett, Carlos Eduardo; Feitosa, Mary Marcondes; Machado, Gisela Fabrino; Perri, Silvia Helena Venturoli (Brazilian Journal of Veterinary Research and Animal Science, 2007)