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 |
“I don't really think in terms of obstacles. My biggest obstacle is always myself.”
“Back in the day, cooking definitely was the thing where you could make a lot of money. Also, it was something that I liked to do.”