04-05-2016 19:05 via npr.org

Advance In Human Embryo Research Rekindles Ethical Debate - NPR

NPR
Advance In Human Embryo Research Rekindles Ethical Debate
NPR
Scientists have been able to make and study human embryos in their labs for decades. But they have never been able to keep them alive outside a woman's womb for more than about a week. That limitation meant scientists were unable to conduct a range of ...
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