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    Academic Journal

    Source: Proceedings of the National Academy of Sciences of the United States of America, 2009 Jan . 106(4), 1122-1127.

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    Academic Journal
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    Academic Journal
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    Academic Journal
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    Academic Journal
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    Academic Journal

    Source: Molecular & Cellular Biology. May2005, Vol. 25 Issue 10, p3896-3905. 10p. 28 Black and White Photographs, 4 Diagrams, 16 Graphs.

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