In a National Public Radio 'All Things Considered'  5 minute segment, listen to the story of two women losing their sight to progressive forms of blindness.  They may have regained some vision while participating in an experiment testing a treatment made from human embryonic stem cells, researchers reported.

The report marks the first time that scientists have produced direct evidence that human embryonic stem cells may have helped a patient. The cells had only previously been tested in the laboratory or in animals.


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