1. A very high level of crossreactivity is an essential feature of the T-cell receptor;Mason;Immunol Today,1998
2. The thymus and negative selection;Sprent;Immunol Rev,2002
3. The third function of the thymus;Seddon;Immunol Today,2000
4. A disquisition on suppressor T cells;Gershon;Transplant Rev,1975
5. Immunologic self-tolerance maintained by activated T cells expressing IL-2 receptor alpha-chains (CD25). Breakdown of a single mechanism of self-tolerance causes various autoimmune diseases;Sakaguchi;J Immunol,1995