GlaxoSmithKline plc (GSK) is a British multinational pharmaceutical, biologics, vaccines and consumer healthcare company which has its headquarters in Brentford, London. As of March 2014, it was the world's sixth-largest pharmaceutical company after Johnson & Johnson, Novartis, Hoffmann-La Roche, Pfizer, and Sanofi, measured by 2013 revenue. The company ...
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