Krummel, Matthew F., and James P. Allison.
"Pillars Article: CD28 and CTLA-4 Have Opposing Effects on the Response of T Cells to Stimulation. The Journal of Experimental Medicine. 1995. 182: 459–465." The Journal of Immunology
187.7
(2011):
3459-3465.
Web. 27 Jan. 2021.
