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Xiangping Wu, Pengyong You, Erzheng Su*, Jingjing Xu, Bei Gao and Dongzhi Wei*
* Corresponding authors: Erzheng Su ezhsu@ecust.edu.cn - Dongzhi Wei dzhwei@ecust.edu.cn
BMC Biotechnology 2012, 12:58 doi:10.1186/1472-6750-12-58