CRP and non-small cell lung carcinoma: Combined indices that integrate biochemical and WBC-derived markers, such as the prognostic nutritional index (PNI), CRP-to-lymphocyte ratio (CLR), CRP–ALB–lymphocyte (CALLY) index, and Noble and Underwood (NUn) score, have also demonstrated a predictive value for overall survival (OS) in NSCLC [9,19,20,21].