VEGFA and small cell lung carcinoma: The results indicated that disease stage (HR: 2.438, 95% CI: 1.090-5.452, P=0.030), treatment response (HR: 2.209, 95% CI: 1.007-4.845, P=0.048), and baseline VEGF-A level (HR: 3.443, 95% CI: 1.330-8.908, P=0.011) were independent prognostic factors for PFS in SCLC patients.