KLK3 and neoplasm: The classification of these patients relies on common indicators such as prostate-specific antigen (PSA), alkaline phosphatase (ALP), lactate dehydrogenase (LDH), Eastern Cooperative Oncology Group erformance status (ECOG PS), Gleason score (GS), and tumor size (T), nodal involvement (N), and metastasis (M) stage (TNM stage) (8, 9).