AFP and neoplasm: The optimal cut-off values of tumor markers to assign the patients into the two groups based on the greatest difference in the RFS were 20 ng/mL for AFP (p = 0.009), 10% for AFP-L3 (p = 0.04), and 40 mAU/mL for DCP (p = 0.076) when the minimum p-value approach was used (Supplementary Figure S1A–C).