Yai, L.E.O. et al. 2003. Evaluation of experimental Toxoplasma gondii (Nicolle and Manceaux, 1909) infection in pigs by bioassay in mice and polymerase chain reaction. Brazilian Journal of Veterinary Research and Animal Science. 40, 3 (Jan. 2003), 227–234. DOI:https://doi.org/10.1590/S1413-95962003000300010.