ALB and small cell lung carcinoma: We placed a specific emphasis on evaluating a series of hematological biomarkers, including LDH, albumin, NLR, dNLR, PLR, LMR, SII, SIRI, as well as individual blood cell types eosinophils, neutrophils, WBC, lymphocytes, monocytes, and platelets on their significance in predicting the effectiveness of ICI treatment in SCLC.