title: Tumour stimulation by anti-oestrogens.
abstract: Two women who developed tumour progression while taking anti-oestrogens are described and some of the possible mechanisms for this action are discussed.
mesh_terms: D000328:Adult; D001943:Breast Neoplasms / Q000188:drug therapy / Q000473:pathology*; D005260:Female; D006801:Humans; D008875:Middle Aged; D009256:Nafoxidine / Q000009:adverse effects* / Q000627:therapeutic use; D011759:Pyrrolidines / Q000009:adverse effects*; D012008:Recurrence; D013629:Tamoxifen / Q000009:adverse effects* / Q000627:therapeutic use
chemical_list: D011759:Pyrrolidines; D013629:Tamoxifen; D009256:Nafoxidine