@article{chen_zhang_2024,  title={Comprehensive exploration of immune checkpoint-related genes in the prognosis and tumor immune microenvironment of pancreatic adenocarcinoma},  volume={79},  ISSN={1807-5932},  url={https://doi.org/10.1016/j.clinsp.2024.100481},  DOI={10.1016/j.clinsp.2024.100481},  journal={Clinics},  publisher={Faculdade de Medicina / USP},  author={Chen, Xiao and Zhang, Herui},  year={2024},  pages={100481} }