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WikiPedia: Pfizer //nla.gov.au/anbd.aut-an35802451 http://www.bseindia.com/stock-share-price/x/y/5006... http://www.businessweek.com/ap/2012-03/D9TP13I80.h... http://stat1.moneycontrol.com/Dow_Jones_Industrial... http://www.nseindia.com/marketinfo/companyinfo/com... http://www.nytimes.com/2009/01/26/business/26drug.... http://www.nytimes.com/2009/09/03/business/03healt... http://Pfizer.com http://pfizer.com http://www.pfizer.com/contact/faqs