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The editors of Science have retracted publication of the article on which this review is based.
Dolly, the cloned sheep, showed that the nucleus of an adult cell could be used to clone a mammal (Journal Watch Mar 14 1997). Two years later, the first human embryonic stem (ES) cells were isolated.
Together, these advances suggested that a human patient with a degenerative disease could be treated with his or her own stem cells someday. First, a clone would be created using a nucleus from one of the patient's own cells. A blastocyst would form, and ES cells would be harvested from the blastocyst. Because ES cells reproduce indefinitely, many genetically identical ES cells could be collected and transplanted without fear of immunologic rejection.…