. . . . . . . "[These data demonstrate that as opposed to the few reports on tumors arising after therapeutic external irradiation, ras mutations are not primary events in the development of post-Chernobyl thyroid papillary carcinomas. p53 mutations do not appear to be important in the development of these tumors, but may in some cases have a role in progression to a more aggressive phenotype that has not yet fully manifested in these pediatric neoplasms.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2017-02-19"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2017-10-17T13:16:57+02:00"^^ . . . . . . . . . . . "v5.0.0.0" . "v5.0.0" .