. . . . . . . "[Although tamoxifen is the most common and effective therapy for treatment of estrogen receptor-? (ER-?) breast cancer patients, resistance of endocrine therapy occurs, either de�novo or acquired during therapy.]. 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 . "2017-10-17T13:12:29+02:00"^^ . . . . . . . . . . . "v5.0.0.0" . "v5.0.0" .