Francis Collins, Lawmakers Debate Stem Cell Merits

In a congressional hearing Thursday, top-level researchers argued that government-backed research should continue to explore all stem cell varieties

By Katherine Harmon   

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BEST USE: Many supporters of embryonic stem cell research argue that continued funding of the research is necessary, as scientists are still sorting out many of the strengths and weaknesses of different types of stem cells.
ISTOCKPHOTO/PAUL FLEET

http://www.scientificamerican.com/article.cfm?id=stem-cell-funding