Ogawa, Liza, Italmar Teodorico Navarro, Roberta Lemos Freire, Rosângela Claret de Oliveira, and Odilon Vidotto. 2003. “Occurrence of Antibodies to Toxoplasma Gondii in Sheep from the Londrina Region of the Paraná State, Brazil”. Semina: Ciências Agrárias 24 (1):57-62. https://doi.org/10.5433/1679-0359.2003v24n1p57.