Ekman, Claudio Cesar Jaguaribe, et al. “Case-Control Study of an Outbreak of Acute Toxoplasmosis in an Industrial Plant in the State of São Paulo, Brazil”. Revista Do Instituto De Medicina Tropical De São Paulo, vol. 54, no. 5, Oct. 2012, pp. 239-44, https://revistas.usp.br/rimtsp/article/view/48400.