Vital Lines: How Stem Cells Work

According to a recent study published in Neurology, a new treatment called hematopoietic stem cell transplantation may offer hope for patients with rapidly progressing multiple sclerosis. Why is stem cell research controversial?

Source: http://feeds.howstuffworks.com/~r/DailyStuff/~3/uJv4wnJ0M8w/stem-cell.htm

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