. . . . . . . . . . . . "[PD-1 plays a crucial role in the attrition of cytomegalovirus-specific CD8-positive (CD8+) T cells in acute hepatitis B virus infection, which in turn, influences the preexisting homeostatic virus-specific CD8+ T cell pool.]. 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 . "2014-10-02T12:33:00+02:00"^^ . . . . . . . . . . . "v2.1.0.0" . "v2.1.0" .