Human Diseases Mirrored in Rat Genome
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U.S. Firm Wants to Test All Cattle for Mad Cow
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Panel Calls for Rules on Embryo Use
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Safety of Generic AIDS Drugs Debated
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Future of Nuclear Energy in the U.S.
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Genetic Ethics: 'Against Perfection'
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How NASA Averted Mars Rover Crisis
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NASA to Test 'Scramjet' Aircraft
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U.S. Picks Medicare Drug-Card Providers
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Researchers Decode Malaria Link
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Rating System for Doctors in the Works
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Rescuers Race to Save Entangled Whale
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Active Seniors Challenge Aging Myths
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U.S. Increasingly Lacks Experts on Aging
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