RT Journal Article SR Electronic(1) A1 Ichiro Okubo A1 ほか YR 2005 T1 Cost-effectiveness of Letrozole versus Tamoxifen as First-line Hormonal Therapy in Treating Postmenopausal Women with Advanced Breast Cancer in Japan JF 癌と化学療法 VO 32 IS 3 SP 351 OP 363 UL https://www.pieronline.jp/content/article/0385-0684/32030/351