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IP address: 44.203.58.132
Time: 2024-03-28T12:09:38Z
URL: http://scholar.google.com/scholar_lookup?title=Tumor+antigen-specific+CD8+T+cells+infiltrating+the+tumor+express+high+levels+of+PD-1+and+are+functionally+impaired&year=2009&author=Ahmadzadeh&journal=Blood&volume=114&issue=8&pages=1537-1544&doi=10.1182%2Fblood-2008-12-195792&pmid=19423728