World Journal of Gastroenterology (2012) - Comments
pubmed: 23082053  doi: 10.3748/wjg.v18.i38.5369  issn: 1007-9327  issn: 2219-2840 

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Ji Li, Li Jia, Zhen-Hai Ma, Qiu-Hong Ma, Xiao-Hong Yang, Yong-Fu Zhao