Camargo, Mario E., Paulo G. Leser, and Walter S. P. Leser. 1976. “Diagnostic Information from Serological Tests in Human Toxoplasmosis - I - A Comparative Study of Hemagglutination, Complement Fixation, LgG- and LgM-Immunofluorescence Tests in 3,752 Serum Samples”. Revista Do Instituto De Medicina Tropical De São Paulo 18 (4): 215-26. https://revistas.usp.br/rimtsp/article/view/198109.