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One of the goals of regenerative medicine is to make tissue to replace our own damaged body parts. Thats still a ways off. But starting with mouse embryonic stem cells, researchers have succeeded in creating heart muscle that actually beats. The stud
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A: Do you have any idea why I pulled you over today? B: I'm not sure. A: One of your brake lights is out. B: Really? I'm sorry. I did not know that. A: I'm going to give you a ticket. B: Why can't you just let me off with a warning? A: It's just a ti
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