Survival outcomes in elderly Taiwanese women according to breast cancer subtype and lymph node status: A single-center retrospective study. oleh Kung-Hung Lin, Huan-Ming Hsu, Kuo-Feng Hsu, Chi-Hong Chu, Zhi-Jie Hong, Chun-Yu Fu, Yu-Ching Chou, Golshan Mehra, Ming-Shen Dai, Jyh-Cherng Yu, Guo-Shiou Liao