. . . . . . . "[most hepatitis C virus (HCV) -specific CD8 cells expressed PD-1 at time of acute illness; expression declined with acquisition of memory phenotype & recovery of CD8 cell function; high levels were present when HCV persisted & CD8 cells were dysfunctional]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2009-03-31"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2017-10-17T13:15:14+02:00"^^ . . . . . . . . . . . "v5.0.0.0" . "v5.0.0" .