TY - Journal of International Oncology A1 - XU Hu, ZHANG Fang, KOU De-Qiang, WANG Jian-Dong T1 - The clinical and pathological characteristics of breast cancer in women ≤40 years of age Y1 - 2016-04-08 JF - Journal of International Oncology JO - Journal of International Oncology SP - 250 EP - 253 VL - 43 IS - 4 UR - https://gjzlx.sdfmu.edu.cn N1 - 10.3760/cma.j.issn.1673422X.2016.04.003 ER -