三阴性乳腺癌的研究进展 Research progress of Triple Negative Breast Cancer(TNBC) 1 01 /研究背景与意义( Background and significance ) 02 /研究成果与应用(Research results and applications) 03 /研究展望(Research prospect) 04 /观点与总结 ( opinions and conclusions ) 目录 CONTENTS 2 研究背景与意义( Background and significance ) 选题背景 / 研究意义 / 国内外相关研究综述 / 研究理论与文献综述 1 PART ONE 3 01 02 03 04 Triple negative breast cancer (TNBC) a specific type of breast cancer, the estrogen receptor, progesterone receptor and human epidermal growth fator receptor