TY - Journal of International Oncology A1 - T1 - Y1 - 2020-08-08 JF - Journal of International Oncology JO - Journal of International Oncology SP - 505 EP - 507 VL - 47 IS - 8 UR - https://gjzlx.sdfmu.edu.cn N1 - 10.3760/cma.j.cn371439-20191031-00066 ER -