AUTHOR=Li Hui , Zhao Peiyan , Tian Lin , Lu Yuanhua , Wang Xinyue , Shao Wenjun , Cheng Ying TITLE=Advances in biomarkers for immunotherapy in small-cell lung cancer JOURNAL=Frontiers in Immunology VOLUME=15 YEAR=2024 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2024.1490590 DOI=10.3389/fimmu.2024.1490590 ISSN=1664-3224