It’s time for a stem-cell fist bump. Nine months after President Obama issued his executive order overturning Bush-era barriers to embryonic stem cell research, the NIH has approved 13 new human embryonic stem-cell lines for federally funded research.  More than 20 additional lines will be considered for approval at the end of this week and dozens more are on the runway for review. NIH director Dr. Francis Collins called the move “a real change in the landscape.”Despite charges to the contrar...

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