GPT and liver cancer: RFA: Radiofrequency ablation; SD: Standard deviation; BCLC: Barcelona Clinical Liver Cancer; TB: Total bilirubin; PT: Prothrombin time; AST: Aspartate aminotransferase; ALT: Alanine aminotransferase; PLR: Platelet-to-lymphocyte ratio; NLR: Neutrophil-to-lymphocyte ratio