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Time: 2024-03-29T00:51:17Z
URL: http://scholar.google.com/scholar_lookup?title=Natural+variants+of+cytotoxic+epitopes+are+T-cell+receptor+antagonists+for+antiviral+cytotoxic+T+cells&year=1994&author=Bertoletti&journal=Nature.&volume=369&pages=407-410&doi=10.1038%2F369407a0&pmid=8196768