Šíma, Petr, and Vaclav Vetvicka. “Horizontal Exchange of Biological Information and Genesis of Adaptive Immune System”. Journal of Research in Biology 5, no. 1 (January 29, 2015): 1619-1626. Accessed November 25, 2024. https://ojs.jresearchbiology.com/ojs1/index.php/jrb/article/view/370.