The analysis included 68 prostate cancer patients (55–83 years, median 73) with clinical stage T1c-T2cN0M0, median combined Gleason score of 6 (3–8), and median prostate-specific antigen (PSA) level of 10 ng/mL (4–20 ng/mL). Here, KLK3 is linked to Familial prostate cancer.