Scientists in Oregon have achieved something that has eluded researchers for years.
http://www.npr.org/2013/05/16/184399430/stem-cell-milestone-revives-intense-ethical-debate?ft=1&f=1007
http://www.npr.org/2013/05/16/184399430/stem-cell-milestone-revives-intense-ethical-debate?ft=1&f=1007
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