Dolly's Creator Weighs in on Human Cloning
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Mineral on Mars Offers Clues to Climate
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Breast Cancer Study Quantifies Risk
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Overseas Science Ethics Questioned
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U.S., Chinese Cooperate on Embryo Study
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China Succeeds in Fertility Transfer
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Trial Halted After Breast Cancer Drug Shows Benefits
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Americans Win Nobel Chemistry Prize
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SARS Treatment Shows Promise
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Rough Draft of Dog Genome Released
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Galileo Heads for Fiery Death
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Study: Monkey Business a Fair Affair
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