ALB and lung cancer: Candidate predictive markers include the modified Glasgow prognostic score (mGPS),13, 14, 15, 16, 17, 18 C‐reactive protein (CRP)‐albumin ratio (CAR),19, 20, 21, 22 neutrophil‐to‐lymphocyte ratio (NLR),23, 24, 25, 26, 27, 28 prognostic nutrition index (PNI),29, 30 and advanced lung cancer inflammation index (ALI).31, 32