TY - Journal of International Oncology A1 - Ning Tingting, Hu Qinyong T1 - Research progress of metformin in tumor immunotherapy Y1 - 2022-05-08 JF - Journal of International Oncology JO - Journal of International Oncology SP - 292 EP - 295 VL - 49 IS - 5 UR - https://gjzlx.sdfmu.edu.cn N1 - 10.3760/cma.j.cn371439-20220228-00054 ER -