Peng Liyuan (L), China's anti-smoking ambassador, and Bill Gates, Co-Chair of the Bill & Melinda Gates Foundation, attend an anti-smoking campaign ahead of the 25th World No-Tobacco Day, in Beijing, May 29, 2012. Some Chinese officials also attended the event. World No-Tobacco Day falls on May 31 every year. [Photo by Lou Linwei/Asianewsphoto]
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