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Former President Joseph R. Biden Jr.'s office pushed back on speculation that there had been a coverup around the illness.
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Questions arise about President Biden's prostate cancer as his last PSA test was in 2014. The cancer, with a Gleason score of 9, has metastasized to the bone.
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Guidelines advise no screening after age 70, and doctors say that even men who test diligently may develop an aggressive cancer after none was found at a recent checkup.
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