For every 10,000 men cared for by high PSA test rate PCPs, an additional 2,495 men got PSA screened, an additional 31 men underwent prostate biopsy, an additional 51 received ultrasound, an additional 18 received radiation treatment and an additional 28 outpatient visits were made for prostate cancer related concerns to any provider. Here, KLK3 is linked to prostate carcinoma.