||Mouse Mus musculus
||Krueger A, Ziętara N, Łyszkiewicz M. T Cell Development by the Numbers. Trends Immunol. 2017 Feb38(2):128-139. doi: 10.1016/j.it.2016.10.007 p.135 top paragraphPubMed ID27842955
|| G.L. Stritesky, et al. Murine thymic selection quantified using a unique method to capture deleted T cells Proc. Natl. Acad. Sci. U. S. A., 110 (2013), pp. 4679-4684 doi: 10.1073/pnas.1217532110PubMed ID23487759
||Primary source  abstract: "[Investigators] generated mice that lack the proapoptotic molecule Bim (bcl2l11) together with a Nur77(GFP) transgene, which allowed the identification and enumeration of T cells that would normally undergo clonal deletion."
||P.135 top paragraph: "To formally distinguish between death by neglect and clonal deletion, this study relied on a combination of CD5, CD69,and caspase 3 staining and established that approximately 25% of apoptosis in the thymus occurred due to negative selection [primary source]."