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Renmin Univ China, Sch Journalism & Commun, Mingde Bldg,Room 506b,59 Zhongguancun St, Beijing 100872, Peoples R China Renmin Univ China, Sch Journalism & Commun, Mingde Bldg,Room 506b,59 Zhongguancun St, Beijing 100872, Peoples R China