4Merchant TE,McCormick B,Yahalom J,et al.The influence of older age on breast cancer treatment decisions and outcome[J].Int J Radiation Oncol Biol Phys,1996,34(3):565.
2Mouridsen H, Ggershanovich M, Sun Y, et al.Superrior efficacy of letrozole versus tamoxifen as first- line therapy for postmenopausal woman with advanced breast cancer: result of a phase III study of the international letrozole breast cancer group.J Clin
3The ATAC Realists Group.Anastrozole alone or in combination with tamoxifen versus tamoxifen alone for adjuvant treatment of postmenopausal womam with early breast cancer: first results of the ATAC randomized trial.Lancet, 2002,359:2131~2139.
4Tamoxifen: Question and Answers.Cancer Facts, National Cancer Institute,2002, 13.
5Eiemann W, Paepke S, Appfelstaedt J, et al.Preoperative treatment of postmenopausal breast cancer patients with letrozole: a randomized double- blind multicenter study.Ann Oncol, 2001,12:1527-1532.
6Jordan VC.Tamoxifen: a most unlikely pioneering medicine.Nat Rev Drug Discov, 2003,2(3):205-213.
7Buzdar AU.Role of anastrozole in adjuvant therapy for postmenopausal patients.Semin Oncol, 2003,30:21-29.
8Early Breast Cancer Trialists′ Collaborative Group.Tamoxifen for early breast cancer: an overview of the randomized trials.Lancet, 1998,351:1451-1467.