Addition of thoracic radiotherapy to a PD-L1 inhibitor plus chemotherapy regimen delays brain metastasis onset in extensive-stage small cell lung cancer patients without baseline brain metastasis. - Huang, Baiyang; Liu, Senyuan; Wang, Kaiyue; Zhao, Jiarui; Li, Min; Wang, Xingpeng; Wang, Weiqing; Wang, Xiaohan; Yu, Jinming; Meng, Xue; Cai, Guoxin (Respiratory Research, 2025)