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Published online 21 June 2002 | Nature | doi:10.1038/news020617-11
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Stem cell hopes double
Embryonic and adult stem-cell findings may re-fuel cloning debates.
US scientists have reversed the symptoms of Parkinson's disease in rats using stem cells from mouse embryos1. Another team has compelling evidence that they have isolated a stem cell from adult human bone marrow that can produce all the tissue types in the body, from blood to muscle to nerve2.
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