. . . . . . . . . . . . "[Since 1992, when PD-1 was isolated, many studies have described the physiological roles of PD-1 signaling, reported relationships between Pdcd-1 gene polymorphism and autoimmune diseases, and applied PD-1/PD-1 ligand modulation to clinical trials.]. 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 . "2014-10-02T12:38:22+02:00"^^ . . . . . . . . . . . "v2.1.0.0" . "v2.1.0" .