Efficacy and Safety of Anti–Programmed Death-Ligand 1 Monoclonal Antibody Socazolimab With Carboplatin and Etoposide for Extensive-Stage SCLC: Results From the Phase 1b Clinical Tr... oleh Shun Lu, PhD, MD, Zhiwei Chen, MD, Jiuwei Cui, MD, Renhua Guo, MD, Ziming Li, MD, Benjamin Xiaoyi Li, PhD, Xiangrong Dai, PhD