论文部分内容阅读
目的回顾性复习超声筛查出乳腺癌的特点并探讨X线钼靶阴性结果的原因。材料与方法本研究由机构审查委员会批准,同时免除知情同意。回顾性研究2003—2011
Objective To retrospectively review the characteristics of breast cancer by ultrasonography and to explore the reasons for the negative results of mammography. Materials and Methods The study was approved by the institutional review board and informed consent was waived. Retrospective study 2003-2011