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Yongqing Shen, Xiaoqiang Guo, Yuejia Wang, Wei Qiu, Yanzhong Chang, Aili Zhang* and Xianglin Duan*
* Corresponding authors: Aili Zhang Zhangaili1967@hotmail.com - Xianglin Duan xlduan0311@163.com
BMC Cancer 2012, 12:470 doi:10.1186/1471-2407-12-470
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