TOKYO - MAY 11: Pfizer building on May 11, 2012 in Tokyo. Pfizer is one of largest pharmaceutical companies worldwide with tremendous revenue $67.4 bn USD for 2011. It exists since 1849.
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TOKYO - MAY 11: Pfizer building on May 11, 2012 in Tokyo. Pfizer is one of largest pharmaceutical companies worldwide with tremendous revenue $67.4 bn USD for 2011. It exists since 1849.