. . . . . . . . . . . . "[Recent studies have demonstrated that, in advanced colorectal carcinoma (CRC) patients, extended RAS (in KRAS exons 2-4 and NRAS exons 2-4) and BRAF mutations are negative predictors for anti-EGFR treatment efficacy and negative prognostic factor, respectively.]. 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 . "2016-05-13T12:51:01+02:00"^^ . . . . . . . . . . . "v4.0.0.0" . "v4.0.0" .