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IP address: 44.222.146.114
Time: 2024-03-28T17:48:43Z
URL: http://scholar.google.com/scholar_lookup?title=Binding+of+the+B+cell+activation+antigen+B7+to+CD28+costimulates+T+cell+proliferation+and+interleukin+2+mRNA+accumulation&year=1991&author=Linsley&journal=J+Exp+Med&volume=173&pages=721-730&doi=10.1084%2Fjem.173.3.721&pmid=1847722