The relation of ultrasonic features and Ki-67 of breast cancer
FAN Qiulan, DONG Xiaoqiu, SHAO Xiaohui, WANG Lulu, ZHANG Liwei
Journal of Practical Oncology . 2013, (1): 65 -68 .  DOI: 10.3969/j.issn.1002-3070.2013.01.014