AUTHOR=Gao Yunbin , Zhang Lixia , Yan Meng , Sun Zongwen , Zhao Haibo , Zhao Lujun TITLE=Development of a prognostic model for patients with extensive-stage small cell lung cancer undergoing immunotherapy and chemotherapy JOURNAL=Frontiers in Immunology VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2025.1561333 DOI=10.3389/fimmu.2025.1561333 ISSN=1664-3224