Holst, I, and M Chinchilla. “Development and Distribution of Cysts of an Avirulent Strain of <i>Toxoplasma</i> And the Humoral Irnmune Response in Mice”. Revista de Biología Tropical 38, no. 2A (November 1, 1990): 189–193. Accessed March 28, 2024. https://revistas.ucr.ac.cr/index.php/rbt/article/view/25042.