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Immunotherapy, including ICIs, has emerged as an invaluable treatment option for advanced PLC. Nevertheless, the expression patterns of PD‐L1 and PD‐1 in PLC remain incompletely understood. In this study, the expression pattern and clinical correlation of PD‐L1 and PD‐1 were analysed in 5245 PLC patients. The positivity rates of PD‐L1 and PD‐1 were very low in the patient PLCs, but the positivity...
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