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Physical activity attenuates PD-1/PD-L1 expression and enhances CD4⁺ T-cell function in COPD patients

Crossref DOI link: https://doi.org/10.1038/s41598-025-31223-7

Published Online: 2025-12-11

Update policy: https://doi.org/10.1007/springer_crossmark_policy

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