title: Letrozole or tamoxifen in early breast cancer.
authors.forename: Aman U
authors.initials: AU
authors.lastname: Buzdar
authors.forename: Michael
authors.initials: M
authors.lastname: Baum
authors.forename: Jack
authors.initials: J
authors.lastname: Cuzick
mesh_terms: D018931:Antineoplastic Agents, Hormonal / Q000009:adverse effects* / Q000627:therapeutic use; D047072:Aromatase Inhibitors / Q000009:adverse effects*; D001943:Breast Neoplasms / Q000188:drug therapy*; D017024:Chemotherapy, Adjuvant; D003627:Data Interpretation, Statistical; D006801:Humans; D000077289:Letrozole; D009570:Nitriles / Q000009:adverse effects*; D013629:Tamoxifen / Q000009:adverse effects*; D014230:Triazoles / Q000009:adverse effects*
chemical_list: D018931:Antineoplastic Agents, Hormonal; D047072:Aromatase Inhibitors; D009570:Nitriles; D014230:Triazoles; D013629:Tamoxifen; D000077289:Letrozole