AUTHOR=Shen Kai , Liao Yi , Dai Yang , Ji Jie , Kuang Pu , Liu Zhigang , Xie Liping , Niu Ting , Jiang Nenggang , Ma Hongbing TITLE=Integration of anti-PD-1 antibody into chemotherapeutic regimens improved the outcome of aggressive NK cell leukemia: a single-center retrospective real-world analysis JOURNAL=Frontiers in Immunology VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2025.1576904 DOI=10.3389/fimmu.2025.1576904 ISSN=1664-3224