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IP address: 3.235.139.122
Time: 2024-03-28T13:49:42Z
URL: http://scholar.google.com/scholar_lookup?title=Cloning+of+B7-2%3A+a+CTLA-4+counter-receptor+that+costimulates+human+T+cell+proliferation&year=1993&author=Freeman&journal=Science&volume=262&pages=909-911&doi=10.1126%2Fscience.7694363&pmid=7694363