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A couple of cancer stories rounded out CBS' coverage. In-house physician Jon LaPook claimed an Exclusive for his news that the National Cancer Institute was canceling a seven-year prostate cancer experiment. Researchers were testing the theory that megadoses of Vitamin E and selenium supplements might keep tumors away. They had 35,000 men take the daily vitamin or a placebo to find out. When it turned out that the placebo patients were slightly healthier, the trial was called off. From London, Mark Phillips told us about an ingredient found in blueberries, cranberries and snapdragon flowers that apparently prevents tumors in laboratory mice. Next, a strain of tomatoes will be bio-engineered to contain extra amounts of the cancer-fighting gene, which will also turn the tomatoes dark. "Is the world ready for purple pizza?"
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