. . . . . . . . . . . . "[In establishing cell lines from an aggressive PD-L1(+) mature B-cell lymphoma, we also noted that PD-L1 expression could be lost under certain in vitro culture conditions.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2014-02-25"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2014-10-02T12:40:38+02:00"^^ . . . . . . . . . . . "v2.1.0.0" . "v2.1.0" .