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IP address: 44.200.26.112
Time: 2024-03-29T12:45:26Z
URL: http://scholar.google.com/scholar_lookup?title=Engagement+of+the+PD-1+immunoinhibitory+receptor+by+a+novel+B7+family+member+leads+to+negative+regulation+of+lymphocyte+activation&year=2000&author=Freeman&journal=J+Exp+Med&volume=192&issue=7&pages=1027-1034&doi=10.1084%2Fjem.192.7.1027&pmid=11015443