Pathways of Discovery

Stem Cells: Golden Opportunities With Ethical Baggage

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Science  09 Jun 2000:
Vol. 288, Issue 5472, pp. 1778
DOI: 10.1126/science.288.5472.1778

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Embryonic stem cells, which have the potential to become any type of cell in the body, could one day provide a readily available supply of any tissue for the repair of damaged or diseased organs. But because they are derived from early human embryos, their use raises ethical problems.