Not heard of it, and I can't find anything on Google.
But you could develop a multiplex method by adding something like
this....
http://www.urinal.net/schiphol/
This week's Which? has some wonderful alternative investigations...
Jonathan
On 20 Aug 2008, at 17:05, Janice Still wrote:
> No, It's not Friday and this is a genuine enquiry. A friend tells me
> he paid money to attend a "Men's health seminar" at the end of which
> all the participants were given a small ball. They were told to pass
> urine directly onto it and if it changed colour, then your PSA was
> "abnormal". Has anyone else heard of this, or do I assume he
> overindulged in the liquid refreshment at lunchtime?
>
> But then again - PSA for fidelity testing is now available. See http://labsoftnews.typepad.com/lab_soft_news/test_kits_and_home_testing/index.html
>
> Jan
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