We began promoting and using the prostate-specific antigen test before it had been adequately evaluated.

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In May 2012, the U.S. Preventive Services Task Force recommended against routine PSA screening (Prostate-Specific Antigen test to screen Prostate cancer) before being diagnosed as it did not benefit patients.

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Well, there is a reference to the pain of the test itself, presumably the PSA (Prostate Specific Antigen) test.

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But UC David professor Michael Wilkes investigated and learned that the seminar was primarily a sales pitch about the prostate specific antigen (PSA) test, and that its main message was that men should get tested regularly beginning at age 40.

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So it ought to be possible to test for the presence of a certain antigen on a surface by dragging a suitable antibody over it, and seeing if it gets stuck going fishing, in effect, on a molecular scale.

ECONOMIST: Microscopy