TY - China Oncology A1 - XIAO Feng , XIAO Jingwen , SHAO Jianguo , CHEN Liyan , GU Chunyan T1 - The expression of programmed death 1 in tumor-infiltrating lymphocytes of hepatocellular carcinoma and its correlation with prognosis Y1 - 2021-05-30 JF - China Oncology JO - China Oncology SP - 419 EP - 427 VL - 31 IS - 5 UR - http://www.china-oncology.com N1 - 10.19401/j.cnki.1007-3639.2021.05.008 ER -