title: Letter: Prophylactic chemotherapy for breast cancer.
mesh_terms: D001943:Breast Neoplasms / Q000188:drug therapy*; D005260:Female; D006801:Humans; D007980:Levodopa / Q000627:therapeutic use; D009362:Neoplasm Metastasis / Q000517:prevention & control*; D013629:Tamoxifen / Q000627:therapeutic use
chemical_list: D013629:Tamoxifen; D007980:Levodopa