Joe Palca Joe Palca is a science correspondent for NPR.

Britain's Parliament Backs Stem-Cell Research

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Stem Cells

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Cloning Claim Stirs Skepticism, Ethical Debate

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Birth of Human Clone Claimed; Scientists Wary

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Group Claims First Human Clone

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Stanford to Create Stem Cell Research Center

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Study: Vaccine Effective Against Cervical Cancer Virus

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Thwarting Terrorism Through 'Information Awareness'

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Israeli Show of Force Follows Hebron Attack

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Rare Genetic Disorder Tied to Assisted Reproduction

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