論文（英文）
KK JJCO2018
Yamada Y, Mukai H, Tokudome Y, Kaneko M, Kashiwabara K, Wada N. Improved overall survival over recent decades in patients with hormone-receptor-positive, HER2-negative breast cancer: a single-center retrospective analysis of prognostic factors. Japanese Journal of Clinical Oncology 2018; 48(3): 248–254.