1. Ferlay J, Bray F, Pisani P, Parkin DM. GLOBOCAN 2000: cancer incidence, mortality and prevalence worldwide, version 1.0. IARC CancerBase No. 5. Lyon: IARCPress. 2001: Accessed 2004.
2. Management of advanced breast cancer with endocrine therapy;Theobald;Int J Clin Pract,2000
3. Aromatase inhibitors for breast cancer in postmenopausal women;Campos;Oncologist,2004
4. Superior efficacy of letrozole versus tamoxifen as first-line therapy for postmenopausal women with advanced breast cancer;Mouridsen;J Clin Oncol,2001
5. Phase III study of letrozole versus tamoxifen as first-line therapy of advanced breast cancer in postmenopausal women;Mouridsen;J Clin Oncol,2003