* Health and Medical News:Genes Reveal Secret Ingredients in Americas' Melting Pot

Scientists trace the history of European and African migration to the Americas — not by looking in history books, but by looking at genetic codes.

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via Health and Medical NewsHealth and Medical News Pfizer Inc has already had its takeover overtures rebuffed three times by rival AstraZeneca Plc, but investors in the U.S. drugmaker say it can tolerate a little more rejection before going hostile with the deal. AstraZeneca turned down a sweeten...

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