香蕉视频

A former 香蕉视频 undergrad is among three U.S.-based scientists who were awarded the 2009 Nobel Prize in physiology or medicine Monday. Jack W. Szostak, now of Harvard Medical School, shares the $1.4-million award with Elizabeth Blackburn of the University of California, San Francisco, and Carol W. Greider of the Johns Hopkins University School of Medicine. The three were honoured for their discovery of key aspects of how cells and animals age and how cancer cells become immortal.

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