. . . . . . . "[Breast cancers contain regions of intratumoral hypoxia in which reduced O(2) availability activates the hypoxia-inducible factors HIF-1 and HIF-2, which increase the transcription of genes encoding proteins that are required for many important steps in cancer progression.]. 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 . "2017-10-17T13:13:18+02:00"^^ . . . . . . . . . . . "v5.0.0.0" . "v5.0.0" .