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Scientists say they have successfully tested artificial blood vessels grown in the laboratory. In a heart bypass operation, surgeons typically remove a vein from a patient's leg and use it to replace blocked arteries that feed the muscles of the hear

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LULU GARCIA-NAVARRO, HOST: In the novel The Windfall, a newly minted tech millionaire buys a big fancy house, a flashy car, and he leaves his middle-class life behind to rub elbows with the superrich. What follows is a delightful comedy of errors whe

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