Development of a diagnostic nomogram for alpha-fetoprotein-negative hepatocellular carcinoma based on serological biomarkers

Figure 2 Expression levels of serum biomarkers. A: Serum GP73 expression levels in the alpha-fetoprotein (AFP)-positive hepatocellular carcinoma (HCC) and AFP-negative HCC groups and healthy subjects; B: Log-transformed des-γ-carboxyprothrombin expression levels; C: Log-transformed CK8-M65 expression levels; D: Log-transformed CK8-M30 expression levels (red represents the AFP-positive HCC group, green represents the AFP-negative HCC group, and blue represents the healthy group). HCC: Hepatocellular carcinoma.