AUTHOR=Yang Zhi , Wang Yan-qing , Chang Xiujun TITLE=Neoadjuvant programmed death ligand-1 with chemotherapy versus chemotherapy alone for limited-stage small-cell lung cancer: a retrospective study JOURNAL=Frontiers in Oncology VOLUME=15 YEAR=2025 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2025.1470445 DOI=10.3389/fonc.2025.1470445 ISSN=2234-943X