. . . . . . . . . . . . "[RT-PCR for CK 19 and CK 20 was performed on peripheral blood samples obtained from 52 patients with gastric cancer, from 24 of whom blood samples were collected on three occasions.]. 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 . "2014-10-02T12:34:28+02:00"^^ . . . . . . . . . . . "v2.1.0.0" . "v2.1.0" .