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Editorial
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Volume 352:1366-1368 March 31, 2005 Number 13
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The Puzzle of Aspirin and Sex
Richard I. Levin, M.D.

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 by Ridker, P. M
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Recently, in New York, the geneticist Luigi Luca Cavalli-Sforza began a brilliant seminar with this introduction: "To understand the present, you have to understand history, and to understand biology, you have to understand evolution, because evolution is the history of biology." Although Cavalli-Sforza's life of exploration along the branches of the human genetic tree has led him to conclude that there is no genetic basis for race,1 there is most obviously a genetic basis for sex. So powerful is la différence that sexual differentiation probably emerged with the appearance of eukaryotes at least 2 billion years ago, Y emerged from . . . [Full Text of this Article]


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From the Leon H. Charney Division of Cardiology, New York University School of Medicine, New York.

This editorial was published at www.nejm.org on March 8, 2005.


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