Alfaro, E., Díaz-García, E., García-Tovar, S., Galera, R., Casitas, R., Martínez-Cerón, E., Torres-Vargas, M., Padilla, J. M., Fernández, C. L., Pérez-Moreno, P., García-Río, F., Zapata, C. C. (2025). Physical activity attenuates PD-1/PD-L1 expression and enhances CD4⁺ T-cell function in COPD patients. Scientific Reports. https://doi.org/10.1038/s41598-025-31223-7