Human T-cell clonal anergy is induced by antigen presentation in the absence of B7 costimulation.
Gimmi CD, Freeman GJ, Gribben JG, Gray G, Nadler LM. Human T-cell clonal anergy is induced by antigen presentation in the absence of B7 costimulation. Proc Natl Acad Sci U S A. 1993 Jul 15; 90(14):6586-90.