* Health and Medical News:The Strange Way the Seasons Change Your Genes and Immune System

Your immune system may change with the seasons, new research shows.

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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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