Lopes, Karoline Franciani Cardoso, et al. “A Serological Survey of Agents Causing Leptospirosis and Toxoplasmosis in Rattus Rattus in the City of Umuarama, Northwest Paraná, Brazil”. Semina: Ciências Agrárias, vol. 38, no. 1, Mar. 2017, pp. 239-48, doi:10.5433/1679-0359.2017v38n1p239.