. . . . . . . "[Approximately 75% of breast cancers express estrogen receptor alpha (ER?) and/or progesterone receptor and these receptors are markers for tumor dependence on estrogen.]. 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 . "2017-10-17T13:15:17+02:00"^^ . . . . . . . . . . . "v5.0.0.0" . "v5.0.0" .