Yi-Lin Yang*, Li Di, Yun-You Duan*, Xi Liu, Jie Liu, Rui-Jing Yang, Sheng Chen and Li-Jun Yuan
* Corresponding authors: Yi-Lin Yang yangyl@fmmu.edu.cn - Yun-You Duan duanyy@fmmu.edu.cn
BMC Gastroenterology 2012, 12:168 doi:10.1186/1471-230X-12-168
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