Meanwhile, Jillian Shapiro of Mount Sinai Medical School figured out away to get another new type of genetic material, called microRNA, into cells using viruses.

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The Colonel switches on his five-thousand-kilowatt charm and hints at what a lucrative future awaits those who know how to keep their mouths shut at a time like this. (Positive-type stutters from the receptionist.) I take the key again, and we mount the stairs.

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