Adult stem cells are also problematic, as they are difficult to identify, purify and grow, and simply may not exist for certain diseased tissues that need to be replaced.
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Nationality: American Type: Politician Born: February 18, 1947 |
“Every time a child says I don't believe in fairies there is a fairy somewhere that falls down dead.”
“If the United States were to cut and run from Iraq, we would send a message of weakness that would embolden our terrorist enemies across the globe. A failed Iraq would destabilize the entire region and undermine U.S. national security for decades to come.”