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CHICAGO, Illinois (AP) -- New research highlights a frustrating fact about science: What was good for you yesterday frequently will turn out to be not so great tomorrow.
The sobering conclusion came in a review of major studies published in three influential medical journals between 1990 and 2003, including 45 highly publicized studies that initially claimed a drug or other treatment worked.
Subsequent research contradicted results of seven studies -- 16 percent -- and reported weaker results for seven others, an additional 16 percent.
That means nearly one-third of the original results did not hold up, according to the report in Wednesday's Journal of the American Medical Association.
