* Health and Medical News:German Merck, Pfizer in immunotherapy deal

Germany's Merck KGaA said Monday it struck an alliance over cancer immunotherapy drugs with Pfizer, triggering an upfront payment of $850 million by the U.S. drugmaker.



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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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