. . . . . . . . . . . . "[PET with 18F-FDG or 18F-FET can be used as additional surrogate biomarkers of the treatment response, although these radiotracers are less sensitive than 18F-FUdR for monitoring tumor responses to prodrug activation gene therapy with HSV1-tk and GCV in this sarcoma model.]. 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 . "2016-05-13T12:45:57+02:00"^^ . . . . . . . . . . . "v4.0.0.0" . "v4.0.0" .