Brian's Empire KE
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Biden battling ‘most aggressive type’ of prostate cancer with bone metastasis, medical expert says
The advanced form of prostate cancer has a 30-40% five-year survival rate
President Biden's cancer is "pretty far advanced," according to Dr. Marc Siegel. (SAUL LOEB/AFP via Getty Images)
The PSA test measures how much PSA is in the blood and is primarily used to screen for prostate cancer. (iStock)
