The announcement last month of a long-awaited breakthrough in stem-cell research - the creation of stem-cell lines from a cloned human embryo - has revived interest in using embryonic stem cells to treat disease.
http://www.nature.com/news/us-scientists-chafe-at-restrictions-on-new-stem-cell-lines-1.13114
http://www.nature.com/news/us-scientists-chafe-at-restrictions-on-new-stem-cell-lines-1.13114
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