. . . . . . . . . . . . "[EGFR mutations in the tyrosine kinase domain of exons 19 and 21 were absent in ESCC, whereas, protein overexpression and gene amplification was prevalent.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2015-02-21"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2016-05-13T12:42:58+02:00"^^ . . . . . . . . . . . "v4.0.0.0" . "v4.0.0" .