TY - Journal of International Oncology A1 - Hu Gengwei1, Zhang Ying2, Wu Zhihao3 T1 - Mechanism study and immunotherapy of immune checkpoint PD-1/PD-L1 Y1 - 2019-02-08 JF - Journal of International Oncology JO - Journal of International Oncology SP - 87 EP - 90 VL - 46 IS - 2 UR - https://gjzlx.sdfmu.edu.cn N1 - 10.3760/cma.j.issn.1673-422X.2019.02.005 ER -