ALB and cancer: Several preoperative prognostic biomarkers based on circulating blood cells, such as lymphocyte-monocyte ratio (LMR), platelet-lymphocyte ratio (PLR), neutrophil-lymphocyte ratio (NLR), and serum albumin (ALB), which could indicate the host’s immune response to malignancy, have been developed to predict the prognosis of patients with various cancers [12,13].