. . . . . . . . . . . . "[The degree of lymph node metastasis was evaluated by measuring the expression level of cytokeratin 19 (CK19) mRNA, a specific marker for breast cancer cells.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2016-02-19"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2016-05-13T12:50:17+02:00"^^ . . . . . . . . . . . "v4.0.0.0" . "v4.0.0" .