Guimarães, S., Urdaneta, H., Silva, E. F., & Tavares, C. A. P. (1991). Entamoeba histolytica: antigenic characterization of axenic strains from Brazil . Revista Do Instituto De Medicina Tropical De São Paulo, 33(1), 6-11. https://revistas.usp.br/rimtsp/article/view/28784