TY - Journal of International Oncology A1 - T1 - Y1 - 2020-07-08 JF - Journal of International Oncology JO - Journal of International Oncology SP - 446 EP - 448 VL - 47 IS - 7 UR - https://gjzlx.sdfmu.edu.cn N1 - 10.3760/cma.j.cn371439-20200304-00055 ER -