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Bing-jie Zheng, Yue-ping Yin*, Yan Han, Mei-qin Shi, Ning Jiang, Zhi Xiang, Rui-xing Yu, Guo-yi Zhang and Xiang-sheng Chen
Corresponding author: Yue-ping Yin email@example.com
BMC Public Health 2014, 14:195
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