The expression of programmed death 1 in tumor-infiltrating lymphocytes of hepatocellular carcinoma and its correlation with prognosis
XIAO Feng , XIAO Jingwen , SHAO Jianguo , CHEN Liyan , GU Chunyan
China Oncology . 2021, (5): 419 -427 .  DOI: 10.19401/j.cnki.1007-3639.2021.05.008