Is this the article you were looking at?
http://www.researchmatters.harvard.edu/story.php?article_id=265
Interesting, and news to me! Thanks for sharing it.
-- The world is what we make of it --
-- Dave
-- <A target="_blank" HREF=http://www.idexter.com>http://www.idexter.com</A>
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--
-- The world is what we make of it --
-- Dave
--
www.idexter.com