Guixiang Ji, Yan Long, Yong Zhou, Cong Huang, Aihua Gu* and Xinru Wang*
* Corresponding authors: Aihua Gu aihuagu@njmu.edu.cn - Xinru Wang xrwang@njmu.edu.cn
BMC Medicine 2012, 10:49 doi:10.1186/1741-7015-10-49
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