Among theprostate cancer patients, 38.5% of those with a prostate specific antigen(PSA) < 0.5 ng/mL tested positive for recurrence on 68Ga-PSMAPET/CT, compared with 71.0% of those with a PSA of 0.5-0.99, 85.7% of thosewith a PSA of 1.0-1.99, and 92.6% of those with a PSA > 1.99. The gene discussed is KLK3; the disease is cancer.