FILE - This Friday, March 2, 2012 file photo shows the exterior of Pfizer in Groton, Conn. Pfizer Inc. Pfizer Inc. reports quarterly financial results before the market opens on Tuesday, April 30,

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FILE - This Friday, March 2, 2012 file photo shows the exterior of Pfizer in Groton, Conn. Pfizer Inc. Pfizer Inc. reports quarterly financial results before the market opens on Tuesday, April 30, 2013. (AP Photo/Elise Amendola) less 

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Associated Press
Wed, May 1, 2013 9:15 AM EDT