The Clinical Efficacy and Cardiotoxicity of Fixed-Dose Monthly Trastuzumab in HER2-Positive Breast Cancer: A Single Institutional Analysis. oleh Yi-Ying Wu, Tzu-Chuan Huang, Tsung-Neng Tsai, Jia-Hong Chen, Ming-Shen Dai, Ping-Ying Chang, Ching-Liang Ho, Ren-Hua Ye, Tsai-Rong Chung, Yeu-Chin Chen, Tsu-Yi Chao