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Chen Ning Yang celebrates his 90th birthday

(chinadaily.com.cn) Updated: 2012-07-02 13:59
Chen Ning Yang celebrates his 90th birthday

Chen Ning Yang, right, and his wife Weng Fan smile at each other during a forum held by Tsinghua University to commemorate his 90th birthday in Beijing, June 30, 2012. [Photo/Asianewsphoto]

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