Prostate-specific antigen (PSA) is a protein produced by both normal and cancerous cells in the prostate gland. It is primarily measured through a blood test, where normal levels are typically found ...
Dr. Robert Getzenberg answers the question: 'What Is A PSA Test , Normal Level?' March 16, 2009 -- Question: What is a prostate-specific antigen (PSA) test, and what is a normal PSA level? Answer: The ...
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