RecruitingPhase 2Drug trialStudy of Serplulimab Plus Chemotherapy as Neoadjuvant Therapy for Limited-stage Small Cell Lung Cancer (LS-SCLC)This investigator-initiated, open-label, prospective Phase II clinical trial, planned to take place across multiple centers in China. We aimed to evaluate the efficacy and safety of surgical resection or chemotherapy following serplulimab plus platinum-containing dual induction therapy for stage II-IIIB (N2) LS-SCLC