1. Harding FA, McArthur JG, Gross JA, Raulet DH, Allison JP. CD28-mediated signalling co-stimulates murine T cells and prevents induction of anergy in T-cell clones. Nature 1992;356:607–609.
2. DeSilva DR, Urdahl KB, Jenkins MK. Clonal anergy is induced in vitro by T cell receptor occupancy in the absence of proliferation. J Immunol 1991;147:3261–3267.
3. Jenkins MK, Taylor PS, Norton SD, Urdahl KB. CD28 delivers a costimulatory signal involved in antigen-specific IL-2 production by human T cells. J Immunol 1991;147:2461–2466.
4. Ramsdell F, Jenkins M, Dinh Q, Fowlkes BJ. The majority of CD4+8-thymocytes are functionally immature. J Immunol 1991; 147:1779–1785.
5. Norton SD, Hovinen DE, Jenkins MK. IL-2 secretion and T cell clonal anergy are induced by distinct biochemical pathways. J Immunol 1991;146:1125–1129.