Activision shares dip after news of lower World of Warcraft subscribers

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World of Warcraft, World of Warcraft: the Burning Crusade, World of WarCraft: Wrath of the Lich King, World of WarCraft: Cataclysm, Call of Duty: Modern Warfare 3, Skylanders: Spyro's Adventure, World of Warcraft: Mists of Pandaria