Lu Cao, Yanming Zhou, Beibei Zhai, Jian Liao, Wen Xu, Ruixiu Zhang, Jing Li, Yu Zhang, Lei Chen, Haihua Qian, Mengchao Wu and Zhengfeng Yin*
* Corresponding author: Zhengfeng Yin yinzfk@yahoo.com.cn
BMC Gastroenterology 2011, 11:71 doi:10.1186/1471-230X-11-71
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