STEAP3 and hepatocellular carcinoma: Progression‐free survival (PFS), an essential measure of quality of life in malignant tumours, was elevated in the high‐expression cohorts of SERPING1 and STEAP3 significantly compared to low‐expression cohorts (Figure 5J,L), indicating that SERPING1 and STEAP3 may function as protective prognostic markers in HCC progression.